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Table of contents

Breast, cytopathology, dermatopathology, GI, GU, gynecologic, head and neck, hematopathology, liver, lung, microbiology, neuropathology, other, pediatric, soft tissue and bone


Breast pathology

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Case 306:37 year old with mastectomy for breast cancer - invasive ductal carcinoma with choriocarcinomatous differentiation
Case 302:45 year old woman presented with breast mass - Rosai-Dorfman disease
Case 271:61 year old woman with mammographic breast mass - adenoid cystic carcinoma
Case 255: 30 year old woman with 12 cm breast mass - lipophyllodes tumor, low grade
Case 252: 64 year old woman with small breast mass - granular cell tumor
Case 236: 71 year old woman with invasive breast cancer - invasive ductal carcinoma with central necrosis
Case 227: 60 year old woman with breast mass - osseous metaplasia
Case 217: 55 year old woman with axillary tail mass - primary diffuse large B cell lymphoma with clear cell change
Case 192: 37 year old woman with breast mass - T cell lymphoma, peripheral type
Case 168: 67 year old woman with mammographic calcifications - in situ and invasive pleomorphic lobular carcinoma
Case 68: 84 year old woman with a breast nodule - apocrine carcinoma
Case 62: 22 year old woman with an enlarging breast mass - sclerosing lobular hyperplasia
Case 45: 72 year old woman with lumpectomy for mammographic calcifications - neuroendocrine DCIS
Case 37: 48 year old woman with a mammary fibroadenoma containing atypical cells - fibroadenoma with bizarre stromal giant cells
Case 35: 54 year old woman with large breast mass and nipple discharge - cystic hypersecretory DCIS
Case 25: 61 year old woman with suspicious microcalcifications on mammography - calcium oxalate microcalcifications
Case 11: Postmenopausal woman with a breast mass - colloid (mucinous) carcinoma of the breast
Case 8: 52 year old woman with a breast mass - secretory carcinoma of the breast
Case 6: 66 year old woman with a well circumscribed breast mass -
metaplastic carcinoma of the breast
Case 4: 59 year old woman with a breast mass - i
nvasive micropapillary carcinoma of the breast (metastatic to lymph node)

Cytopathology

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Case 100: 50 year old man with bilateral neck masses - nasopharyngeal carcinoma

Case 72: Two year old boy with multiple skull masses - Langerhans cell histiocytosis

Case 36: 7 year old girl with fine needle aspiration of a chest mass - anaplastic large cell lymphoma

Case 28: Elderly man with a fixed neck mass - adenoid cystic carcinoma of larynx extending to thyroid gland

Case 9: 47 year old man with a pleural based lesion - schwannoma

 

Dermatopathology

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Case 304: 55 year old woman with skin nodule on chest - squamous cell carcinoma in situ and Merkel cell carcinoma
Case 290: 87 year old woman with forearm skin lesion - squamous cell carcinoma, keratoacanthoma-like
Case 253: 70 year old woman with cheek lesion - keratoacanthoma
Case 251: 68 year old man with multiple brown macules and plaques on face and body - Gorlin's syndrome (Nevoid basal cell carcinoma syndrome)
Case 225: 73 year old man with nodules on leg secondary to splinter injury while chopping firewood - Prototheca wickerhamii
Case 221: 34 year old woman with SLE and a skin rash - palisaded neutrophilic and granulomatous dermatitis
Case 190: 60 year old woman with "BCC" on cheek - storiform collagenoma

Case 160: 52 year old woman with chronic, diffuse, lichenified eruptions on leg - scabies

Case 155: 18 year old woman with papules on legs x 12 years, now on hands - Darier’s disease

Case 153: 34 year old woman with papular lesions on hand and face - multicentric reticulohistiocytosis

Case 151: 86 year old man with indurated cutaneous papules - atypical CML with leukemia cutis and vasculitis

Case 140: 68 year old woman with eruption of violaceous skin nodules - leukemia cutis

Case 116: 60 year old man with scalp nodule - epithelioid variant of benign fibrous histiocytoma

Case 113: 24 year old woman with abdominal skin lesion - pigmented epithelioid melanocytoma

Case 107: 37 year old man with skin lesion in the back - retiform hemangioendothelioma

Case 71: 64 year old woman with pruritic, erythematous plaques on her abdomen and back - erythema gyratum repens

Case 56: 85 year old Mexican woman with pruritic and scaly plaques on her trunk - pemphigus foliaceus

Case 7: 19 year old man with lump on wrist - cellular blue nevus

Case 5: 20 year old woman with an “extranumerary nipple” - juvenile xanthogranuloma

 

Gastrointestinal pathology

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Case 305: 63 year old man with prior tubular adenoma and new colon polyp - ganglioneuroma
Case 303: 47 and 50 year old men with malabsorption - Whipple's disease
Case 275: 35 year old woman exposed to Chernobyl explosion with upper abdominal pain - Signet ring cell adenocarcinoma of the stomach
Case 272: 50 year old man with multiple polyps in jejunum - Peutz Jegher (hamartomatous) polyp
Case 270: 65 year old man with multiple intestinal and mesenteric nodules - epithelioid GIST, plasmacytoid variant
Case 263: 53 year old woman with epigastric pain - Brunner gland hamartoma
Case 257: 50 year old man with watery diarrhea - intestinal spirochetosis and amebiasis
Case 249: 32 year old woman with tumor in cecal region - calcifying fibrous tumor of omentum
Case 240: 46 year old woman with chronic abdominal discomfort - diaphragm disease of small bowel
Case 237: 45 year old woman with large mass attached to mid-jejunum - malignant GIST
Case 234: 29 year old woman with cholecystectomy - osseous metaplasia
Case 231: 94 year old woman with GI bleed and spotty hyperpigmentation at endoscopy - melanosis duodeni
Case 226: 39 year old woman with duodenal polyp - pancreatic heterotopia
Case 223: 55 year old HIV+ man with granular and enlarged liver by ultrasound - Mycobacterium avium complex
Case 213: 48 year old man with prolonged diarrhea - intestinal spirochetosis
Case 210: 2 year old girl post-liver transplant with multiple bowel masses - post transplant EBV associated smooth muscle tumor
Case 189: 58 year old man with a large colonic polyp - tubulovillous adenoma with microcarcinoids
Case 186: 60 year old woman with clinically gangrenous gallbladder - adenomyoma
Case 177: 25 year old man with abdominal mass – angiomyolipoma of ileum
Case 163: 9 year old boy with perforated sigmoid colon - Ehlers-Danlos syndrome, vascular type (type IV)
Case 161: 18 year old man with abdominal mass and biopsy - hepatocellular carcinoma, fibrolamellar variant
Case 159: 31 year old woman with enlarged stomach lesion - GI histoplasmosis
Case 157: 20 year old woman with dyspepsia - gastric giardiasis
Case 154: 81 year old woman with cystic, papillary pancreatic tumor - IPMN, intestinal type
Case 147: 40 year old man with massive rectal bleeding - inflammatory polyposis
Case 144: 63 year old man with gallbladder tumor - inflammatory MFH or dedifferentiated liposarcoma
Case 143: 37 year old woman with abdominal mass - PEComa
Case 141: 42 year old woman with possible hepatic adenomas - focal fatty change
Case 136 24 year old woman with a 6 cm cystic pancreatic lesion - acinar cell cystadenoma
Case 134 10 year old girl with 15 cm liver mass - undifferentiated embryonal sarcoma
Case 133 43 year old Honduran man with diarrhea and abdominal pain - Stronglyoides stercoralis
Case 129 52 year old man with anal condyloma - coexisting syphilis
Case 127 56 year old woman with celiac sprue and nodular areas in the antrum - MALT lymphoma
Case 124: 55 year old man with duodenal polyp - gastric metaplasia/heterotopia
Case 121: 33 year old woman with pancreatic mass - solid pseudopapillary neoplasm
Case 102: 28 year old man had a history of ulcerative colitis - cap polyposis
Case 90: 33 year old woman with clinical appendicitis - Enterobius vermicularis infestation

Case 86: 39 year old woman with a small intestinal mass - inflammatory fibroid polyp

Case 81: 36 year old man with a duodenal mass - follicular dendritic cell sarcoma

Case 33: 48 year old man with a 4 cm gastric mass - gastrointestinal stromal tumor

Case 22: 51 year old man with symptomatic anemia and gastric masses - metastatic renal cell carcinoma

Case 13: 31 year old woman with a pancreatic mass - desmoplastic small round cell tumor of pancreas


Genitourinary pathology

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Case 297: 38 year old man with mass attached to tunica of testis - adenomatoid tumor, oxyphilic variant
Case 286: 58 year old man had a prostate biopsy for a "hard" prostate - extensive prostatic intraductal carcinoma
Case 279: 1 year old boy with undescended testis and firm nodule near external inguinal opening - anorchia (regressive testicular syndrome)
Case 269: 59 year old man with a PSA of 7.9 - stromal tumor of uncertain malignant potential (STUMP)
Case 267: 75 year old woman with ulcerated mass of ureter - lymphoepithelioma-like carcinoma
Case 261: 11 year old boy with hydrocele - malignant papillary mesothelioma of testis
Case 258: 60 year old man with prostatectomy - signet ring adenocarcinoma
Case 254: 45 year old man with testicular swelling - paratesticular leiomyosarcoma
Case 244: 11 year old girl with renal mass and lung nodules - renal actinomycosis
Case 235: 52 year old man with unexplained renal failure - renal hemosiderosis
Case 229: 71 year old woman with end stage renal disease and multiple complex cystic renal lesions - clear cell papillary renal cell carcinoma
Case 228: 14 year old boy with recurrent scrotal and penile swelling - granulomatous lymphangitis
Case 220: 37 year old woman with renal mass - angiomyolipoma with predominant smooth muscle component
Case 219: 76 year old man with bladder wall mass - plasmacytoid variant of high grade urothelial carcinoma
Case 209: 72 year old man with TURP - nephrogenic adenoma of prostate
Case 204: 60 year old man with incidental renal mass - primary renal carcinoid tumor
Case 203: 43 year old man with ureteral tumor - primary leiomyoma of uretuer
Case 198: 55 year old woman with hematuria - pseudocarcinomatous epithelial hyperplasia of bladder
Case 195: 40 year old woman with bladder mass - paraganglioma
Case 194: 82 year old woman with mass in proximal urethra and bladder neck - clear cell adenocarcinoma
Case 187: 53 year old man on dialysis with incidental renal tumor - glomus tumor
Case 178: 69 year old woman with metastatic pancreatic adenocarcinoma and nephrotic syndrome - thrombotic microangiopathy due to gemcitabine therapy
Case 145: 15 year old boy with paratesticular tumor - spindle cell embryonal rhabdomyosarcoma

Case 137: 72 year old man with a radical prostatectomy for prostatic adenocarcinoma - prostatic melanosis

Case 131: 76 year old woman with hematuria - malakoplakia of bladder

Case 128: 29 year old man with hydronephrosis - renal tuberculosis

Case 126: 19 year old man with hypertension and renal insufficiency - preB acute lymphoblastic leukemia / lymphoma

Case 122: 43 year old man with testicular tumor - Leydig cell tumor

Case 117: 70 year old man with prostatectomy - pseudohyperplastic variant of prostatic adenocarcinoma

Case 106: 35 week fetus with distended abdomen - meconium peritonitis

Case 94: 57 year old man with tumor of renal pelvis - signet ring cell adenocarcinoma

Case 85: 66 year old man with a radical prostatectomy for prostatic adenocarcinoma - bilateral seminal vesicle amyloidosis

Case 83: 72 year old woman with renal pelvis mass - mixed epithelial and stromal tumor

Case 76: 49 year old man with an inguinal mass - tubulocystic clear cell carcinoma of prostate *with femoral nodal metastases

Case 69: 34 year old man with a scrotal abscess - epithelioid sarcoma

Case 57: 3 month old girl with kidney mass - congenital mesoblastic nephroma

Case 51: 56 year old man with large, cystic renal lesion - tubulocystic carcinoma

Case 48: 50 year old woman with well encapsulated renal mass - papillary renal cell carcinoma, solid variant

Case 43: 44 year old man with a 1 mm incidental renal mass at nephrectomy - papillary adenoma

Case 40: 56 year old man with B cell CLL, post-treatment for a relapse, now with dysuria and hematuria - BK polyoma virus related hemorrhagic cystitis

Case 32: 44 year old woman with incidental renal mass composed of straplike cells - atypical epithelioid angiomyolipoma

Case 30: 41 year old man with diabetes and renal failure after an upper respiratory infection - diabetic nodular glomerulosclerosis with superimposed post - infectious glomerulonephritis.

Case 26: 29 year old man with a testicular mass - mixed germ cell tumor

Case 19: 40 year old woman with large renal mass - monophasic synovial sarcoma

Case 18: 23 year old man with pain in the right testis - sclerosing Sertoli cell tumor


Gynecologic pathology

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Case 295: 50 year old woman with ovarian mass - diffuse large B cell lymphoma
Case 294: 43 year old woman with uterine bleeding - endometrioid adenocarcinoma, corded and hyalinizing pattern
Case 293: 60 year old woman with 2 cm nodule in labia majora - adenocarcinoma of vulva with apocrine features
Case 285: 41 year old woman with omentum sampling post - Caesarean section for term delivery without complications - extrauterine deciduosis
Case 273: 42 year old pregnant woman with ulcerated nodule on labia - ectopic mammary tissue of the vulva
Case 264: 22 year old pregnant woman with twins with oligohydramnios and polyhydramnios - twin transfusion syndrome
Case 256: 23 year old woman with vaginal discomfort - hymenal polyp, gastrointestinal type
Case 246: 53 year old woman with hysterectomy for vaginal bleeding - endometrial stromal sarcoma, low grade
Case 241: 30 year old woman with 2 cm circumscribed vulval mass - angiomyofibroblastoma
Case 233: 62 year old woman with 7 cm adnexal mass - endometrioid borderline tumor (ovary)
Case 232: 51 year old woman with incidental uterine 3 cm white-tan subserosal nodule - adenomatoid tumor
Case 211: 57 year old woman with endometrial polyp - uterine tumor resembling ovarian sex cord tumor
Case 207: 8 year old girl with pelvic mass - mixed malignant germ cell tumor - choriocarcinoma and mature teratoma
Case 205: 36 year old woman with multiple small cystic lesions of the pelvic peritoneum and small bowel mesentery - benign cystic mesothelioma
Case 202: 30 year old woman with cervical biopsy - adenocarcinoma in situ, endocervical type
Case 200: 2 month old girl with ulcerated chest wall nodule - metastatic choriocarcinoma
Case 193: 25 year old woman with enlarged placenta with numerous grape-like cysts - placental mesenchymal dysplasia
Case 184: 37 year old woman with ovarian mass - signet ring stromal tumor
Case 181: 28 year old woman with vulvar tumor - aggressive angiomyxoma
Case 172: 73 year old woman with vulvar mass - primary Bartholin's gland adenocarcinoma
Case 171: Middle aged woman with vaginal nodule - spindle cell epithelioma of vagina
Case 162: 9 month old girl with imperforate anus and presacral mass - teratoma associated with Currarino syndrome
Case 152: 54 year old woman with pelvic mass - metastatic pulmonary adenocarcinoma to ovary

Case 146: 51 year old woman with vaginal polyp - tubulovillous adenoma

Case 135: 50 year old woman with vaginal bleeding - glial polyp of cervix

Case 125: 62 year old woman with post-menopausal bleeding - metastatic lobular carcinoma to a tamoxifen-associated endometrial polyp

Case 109: 58 year old woman with post-menopausal bleeding - melanoma of uterus

Case 96: 55 year old woman with a pelvic mass - adult granulosa cell tumor

Case 92: 59 year old woman with a vaginal discharge - leiomyosarcoma of cervix

Case 91: 44 year old woman with CIN II-III - isolated cervical polyarteritis nodosa

Case 60: 45 year old woman with menometrorrhagia - endometrial intraepithelial neoplasia

Case 59: 7 year old girl with precocious puberty and ovarian mass - juvenile granulosa cell tumor

Case 55: 50 year old woman with an ileocecal mass - endometriosis

Case 53: HIV positive woman from Ghana with large vulvar mass - hypertrophic herpes simplex virus in HIV positive patient

Case 31: 44 year old woman with extensive tumor deposits on the omentum, uterus, tubes and ovaries - serous psammocarcinoma

Case 12: 22 year old woman with an ovarian mass - dysgerminoma

 

Head and neck pathology

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Case 301: 45 year old woman with a soft tissue swelling confined to the orbit - cavernous hemangioma
Case 291: 47 year old woman with endoscopic surgery for nasal polyp - nasal chondromesenchymal hamartoma
Case 288: 65 year old man with mass in floor of mouth - metastatic hepatocellular carcinoma
Case 281: 48 year old man with eyelid mass - mantle cell lymphoma
Case 276: 11 year old boy with tonsillar mass - embryonal rhabdomyosarcoma
Case 274: 65 year old man with swelling around gums and teeth - metastatic renal cell carcinoma
Case 268: 2 year old boy with parotid mass - gangliorhabdomyosarcoma
Case 248: 74 year old man with multinodular goiter - follicular adenoma with squamous cell carcinoma
Case 247: 61 year old woman with diffusely enlarged thyroid gland - amyloid goiter
Case 243: 28 year old man with submandibular mass - pleomorphic adenoma
Case 230: Middle-aged woman with locally recurrent thyroid tumor - sclerosing mucoepidermoid carcinoma with eosinophilia
Case 214: 44 year old man with parotid gland mass - low grade cribriform cystadenocarcinoma
Case 212: 70 year old man with enlarging thyroid nodule - rhabdomyoma
Case 201: 12 year old boy with malar rash - rhabdomyomatous mesenchymal hamartoma
Case 191: 54 year old man with large posterior nasal mass - seromucinous hamartoma
Case 183: Elderly patient with mass behind ear - metastatic acinic cell carcinoma

Case 156: 50 year old man with erythematous gingiva - plasma cell gingivitis

Case 142: 17 year old woman with floor of mouth tumor - osseous choristoma

Case 139: 53 year old man with bipolar disorder and sudden death - lithium thyroiditis

Case 138: 51 year old man with a nasal turbinate mass - angioleiomyoma

Case 115: 61 year old man with eyelid swelling - cysticercosis

Case 112: 76 year old man with nasopharyngeal mass - Warthin’s tumor

Case 108: 86 year old woman with neck pain and difficulty swallowing - ectopic parathyroid tissue

Case 104: 22 year old man with fine needle aspiration of a neck nodule - meningioma

Case 103: 86 year old man with stable parotid mass - sebaceous lymphadenoma

Case 101: 40 year old woman with nasal mass - NK/T cell lymphoma

Case 100: 50 year old man with bilateral neck masses - nasopharyngeal carcinoma

Case 97: 29 year old man from India with nasal mass - Rhinosporidiosis

Case 84: 58 year old woman with chronic sinusitis - sinonasal hemangiopericytoma

Case 82: 57 year old man with papillary lesions on his palate - verruciform xanthoma

Case 73: 66 year old man with a cyst-like lesion of the mandible - primary intraosseous odontogenic verrucous carcinoma

Case 54: 59 year old woman with a slow growing parotid mass - epithelial-myoepithelial carcinoma

Case 49: 68 year old woman with large soft palate tumor - sialolipoma of soft palate

Case 42: 63 year old man with painful cheek mass - acinic cell carcinoma of parotid gland

Case 28: Elderly man with a fixed neck mass - adenoid cystic carcinoma of larynx extending to thyroid gland

Case 24: 43 year old man with chronic sinusitis and a nasal polyp - respiratory epithelial adenomatoid hemartoma

Case 14: 17 year old woman with loosening of lower incisors - central giant cell granuloma of mandible

 

Hematopathology

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Case 307: 65 year old man with colon cancer and 2.5 cm groin lymph node - Kaposi sarcoma
Case 299: 49 year old woman with lymphadenpathy, tender skin papules and a pathologic tibial fracture - Erdheim - Chester Disease
Case 284: 21 year old man with submandibular mass - nodular lymphocyte predominant Hodgkin lymphoma
Case 277: 45 year old Pakistani man with fever and rigors - malaria (Plasmodium falciparum)
Case 260: 75 year old woman with prior breast cancer and new liver mass - primary low-grade hepatic B-cell lymphoma of mucosa-associated lymphoid tissue (MALT) type
Case 218: 35 year old HIV+ man with diffuse lymphadenopathy - mycobacterial spindle cell pseudotumor of lymph nodes
Case 192: 37 year old woman with breast mass - T cell lymphoma, peripheral type
Case 179: 62 year old woman with sudden epigastric pain – littoral cell angioma
Case 176: 66 year old man with abdominal pain - blastic plasmacytoid dendritic cell neoplasm
Case 175: 70 year old woman with cerebral mass - primary CNS lymphoma, diffuse large B cell subtype
Case 151: 86 year old man with indurated cutaneous papules - atypical CML with leukemia cutis and vasculitis
Case 140: 68 year old woman with eruption of violaceous skin nodules - leukemia cutis
Case 130: 27 year old woman wih a swelling of the fibula - myeloid sarcoma

Case 127: 56 year old woman with celiac sprue and nodular areas in the antrum - MALT lymphoma

Case 120: 88 year old woman with abnormal CBC - B cell prolymphocytic leukemia

Case 118: 60 year old man with lower leg edema - angiomyomatous hamartoma of lymph node

Case 101: 40 year old woman with nasal mass - NK/T cell lymphoma

Case 95: 55 year old man with a nodular patch in the cecum at colonscopy - hairy cell leukemia

Case 93: 63 year old woman with axillary mass - Castleman’s disease-hyaline vascular variant

Case 89: 22 year old woman with cervical adenopathy and no other medical history - Kikuchi’s disease

Case 87: 41 year old HIV+ man with pancytopenia and skin nodules - Leishmaniasis

Case 81: 36 year old man with a duodenal mass - follicular dendritic cell sarcoma

Case 79: Elderly man with an enlarged supraclavicular lymph node - CLL/SLL, paraimmunoblastic variant

Case 74: 65 year old woman with backache, abnormal plasma cells but a normal serum protein electrophoresis - light chain multiple myeloma

Case 41: 72 year old woman with multiple strokes - intravascular lymphoma

Case 36: 7 year old girl with fine needle aspiration of a chest mass - anaplastic large cell lymphoma

Case 27: 22 year old woman with worsening pelvic pain - chronic myelogenous leukemia

Case 21: 64 year old Japanese woman with multiple opportunistic infections - adult T cell leukemia / lymphoma

Case 2: Incidental splenic mass during laparoscopy for excision of benign pancreatic cyst - splenic hamartoma

Case 1: 46 year old man with mediastinal mass - follicular dendritic reticulum cell tumor / follicular dendritic cell sarcoma

 

Liver pathology

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Case 288: 65 year old man with mass in floor of mouth - metastatic hepatocellular carcinoma
Case 260: 75 year old woman with prior breast cancer and new liver mass - primary low-grade hepatic B-cell lymphoma of mucosa-associated lymphoid tissue (MALT) type

Case 164: 51 year old man with liver disease - Gaucher disease

Case 88: 13 month old girl with incidental liver mass - focal nodular hyperplasia

Case 70: 47 year old woman with a multilocular hepatic cyst - mucinous biliary cystadenoma

Case 61: 15 month old boy with an asymptomatic liver mass - mesenchymal hamartoma

Case 44: 20 year old woman with liver mass identified after childbirth - inflammatory pseudotumor


Lung pathology

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Case 298: 65 year old woman with arthritis and lung mass - cryptococcus
Case 287: 71 year old man with recurrent pneumonia - aspiration with granulomatous bronchiolitis and lipoid pneumonia
Case 266: 30 year old woman with hemoptysis and fever for 1 week - endobronchial carcinoid
Case 197: 85 year old woman with multiple lung nodules - pulmonary amyloidosis
Case 196: Premature male with bilateral pleural effusions - primary pulmonary lymphangiectasis
Case 166: 8 month old infant with lung mass - Pleuropulmonary blastoma, type III
Case 105: 6 year old boy with bilateral pulmonary infiltrates - acute eosinophilic pneumonia
Case 58: Term newborn with abnormal fetal ultrasound and lobectomy - congenital cystic adenomatoid malformation, type II
Case 23: 80 year old man with a lung nodule and enlarged mediastinal lymph nodes - epithelioid angiosarcoma
Case 9: 47 year old man with a pleural based lesion - schwannoma

Microbiology

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Case 277: 45 year old Pakistani man with fever and rigors - malaria (Plasmodium falciparum)
Case 225: 73 year old man with nodules on leg secondary to splinter injury while chopping firewood - Prototheca wickerhamii
Case 223: 55 year old HIV+ man with granular and enlarged liver by ultrasound - Mycobacterium avium complex
Case 215: 2 year old boy with hemiparesis and contrast-enhancing lesion by MRI - Balamuthia mandrillaris encephalitis
Case 213: 48 year old man with prolonged diarrhea - intestinal spirochetosis

Case 174: 45 year old Guyanese woman with severe headache - CNS toxoplasmosis

Case 133: 43 year old Honduran man with diarrhea and abdominal pain - Stronglyoides stercoralis

Case 87: 41 year old HIV+ man with pancytopenia and skin nodules - Leishmaniasis

Case 53: HIV positive woman from Ghana with large vulvar mass - hypertrophic herpes simplex virus in HIV positive patient

Case 40: 56 year old man with B cell CLL, post-treatment for a relapse, now with dysuria and hematuria - BK polyoma virus related hemorrhagic cystitis

 

Neuropathology

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Case 292: 17 year old boy with solid and cystic frontal brain mass - giant cell glioblastoma
Case 282: 17 year old girl with lesion of lateral ventricle - xanthogranuloma of choroid plexus
Case 265: 61 year old man with follicular lymphoma and cerebellar mass - progressive multifocal leukoencephalopathy
Case 259: 45 year old woman with headache and dural based lesion - microcystic meningioma, WHO grade I
Case 250: 4 month old boy with hypothalamic tumor - pilomyxoid astrocytoma
Case 242: 39 year old woman with dural mass - chordoid meningioma
Case 222: 18 year old woman with frontal lobe mass - alveolar soft part sarcoma
Case 216: 28 month old girl with mass lesions in 4th ventricle and cerebellum - medulloepithelioma
Case 215: 2 year old boy with hemiparesis and contrast-enhancing lesion by MRI - Balamuthia mandrillaris encephalitis
Case 208: 66 year old man with mass of fourth ventricle - giant cell ependymoma
Case 175: 70 year old woman with cerebral mass - primary CNS lymphoma, diffuse large B cell subtype
Case 174: 45 year old Guyanese woman with severe headache - CNS toxoplasmosis
Case 119: 17 year old woman with intraventricular mass - central neurocytoma
Case 111: 71 year old man with filum terminale mass - myxopapillary ependymoma
Case 75: 57 year old man with a CNS intraventricular mass - subependymoma
Case 39: 16 year old girl with new onset of seizures and a temporal lobe mass - pleomorphic xanthoastrocytoma
Case 38: 54 year old man with von Hippel Lindau disease and a cerebellar mass - hemangioblastoma

Other

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Case 278: 62 year old man with anterior mediastinal mass - atypical carcinoid tumor of thymus
Case 224: 25 year old woman found dead in apartment with 6 cm tumor at cardiac apex - cardiac fibroma of right ventricle
Case 188: 61 year old woman with incidental adrenal cyst - ectopic thyroid tissue

Case 170: 36 year old man with adrenal mass - myelolipoma

Case 150: 37 year old woman with pericardial mass - synovial sarcoma

Case 114: 47 year old woman with left ventricular mass - leiomyosarcoma

Case 99: 70 year old man with mediastinal mass - thymoma

Case 98: 18 year old man with pigmented thyroid gland at autopsy - black thyroid due to minocycline

Case 78: 65 year old woman with a left atrial mass - cardiac myxoma with glandular differentiation

Case 17: 61 year old woman with a mediastinal mass - thymic carcinoma

 

Pediatric pathology

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Case 210: 2 year old girl post-liver transplant with multiple bowel masses - post transplant EBV associated smooth muscle tumor
Case 207: 8 year old girl with pelvic mass - mixed malignant germ cell tumor - choriocarcinoma and mature teratoma
Case 201: 12 year old boy with malar rash - rhabdomyomatous mesenchymal hamartoma
Case 200: 2 month old girl with ulcerated chest wall nodule - metastatic choriocarcinoma
Case 196: Premature male with bilateral pleural effusions - primary pulmonary lymphangiectasis
Case 193: 25 year old woman with enlarged placenta with numerous grape-like cysts - placental mesenchymal dysplasia
Case 185: 5 month old boy with retrophyaryngeal mass - neuroblastoma
Case 166: 8 month old infant with lung mass - Pleuropulmonary blastoma, type III
Case 165: 4 month old child with midline skull lesion - Pigmented neuroectodermal tumor of infancy
Case 163: 9 year old boy with perforated sigmoid colon - Ehlers-Danlos syndrome, vascular type (type IV)
Case 162: 9 month old girl with imperforate anus and presacral mass - teratoma associated with Currarino syndrome
Case 123: 1 year old boy with neck mass - lipoblastoma
Case 106: 35 week fetus with distended abdomen - meconium peritonitis
Case 72: Two year old boy with multiple skull masses - Langerhans cell histiocytosis

Case 67: 2 year old with an abdominal mass - neuroblastoma

Case 59: 7 year old girl with precocious puberty and ovarian mass - juvenile granulosa cell tumor

Case 58: Term newborn with abnormal fetal ultrasound and lobectomy - congenital cystic adenomatoid malformation, type II

Case 57: 3 month old girl with kidney mass - congenital mesoblastic nephroma

 

Soft tissue and Bone pathology

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Case 308: 52 year old woman with wrist pain and clinical giant cell tumor - monoarticular erosive rheumatoid arthritis
Case 300: 61 year old woman with a loosening of total hip replacement (THR) prosthesis after a fall - giant cell reaction to polyethylene particles
Case 299: 49 year old woman with lymphadenpathy, tender skin papules and a pathologic tibial fracture - Erdheim - Chester Disease
Case 296: 28 year old woman with 2 cm mass on big toe - acral myxoinflammatory fibroblastic sarcoma
Case 289: 42 year old man with painful forearm mass - glomangioma
Case 283: 48 year old man with shoulder mass - angiomyolipoma
Case 280: 15 year old girl with well circumscribed sacroiliac mass - chondromyxoid fibroma
Case 268: 2 year old boy with parotid mass - gangliorhabdomyosarcoma
Case 262: 26 year old woman with thumb tumor / 37 year old woman with index finger cyst - nerve sheath myxoma
Case 245: 39 year old man with 9 cm soft tissue mass of thigh - hibernoma
Case 239: 29 year old man with 7 cm swelling in elbow - angiomatoid fibrous histiocytoma
Case 238: 81 year old man with subcutaneous mass of great toe - symplastic glomus tumor
Case 206: 80 year old man with multiple splenic infarcts - intimal sarcoma of abdominal aorta
Case 201: 12 year old boy with malar rash - rhabdomyomatous mesenchymal hamartoma
Case 199: 44 year old woman with recurrent mass of ankle / dorsum of foot - hemosiderotic fibrohistiocytic lipomatous tumor
Case 182: 55 year old man with neck mass - spindle cell lipoma, pseudoangiomatous variant
Case 181: 28 year old woman with vulvar tumor - aggressive angiomyxoma
Case 180: 29 year old woman with occipital mass – plexiform fibrohistiocytic tumor
Case 173: 39 year old man with buttock tumor - penicillin induced myospherulosis
Case 169: 58 year old woman with shoulder mass - low grade fibromyxoid sarcoma

Case 167: 35 year old man with neck mass - desmoid tumor (extraabdominal fibromatosis)

Case 165: 4 month old child with midline skull lesion - pigmented neuroectodermal tumor of infancy

Case 158: 26 year old woman with mass on palm of hand - lipomatosis of nerve

Case 149: 50 year old woman with thigh mass - parachordoma

Case 145: 15 year old boy with paratesticular tumor - spindle cell embryonal rhabdomyosarcoma

Case 132: 54 year old woman with supraclavicular mass - DFSP, myxoid variant

Case 130: 27 year old woman with a swelling of the fibula - myeloid sarcoma

Case 123: 1 year old boy with neck mass - lipoblastoma

Case 110: 47 year old man with low back pain - chordoma

Case 107: 37 year old man with skin lesion in the back - retiform hemangioendothelioma

Case 80: 28 year old man with a red thigh nodule for 6 months suggestive of Kaposi’s sarcoma - microvenular hemangioma

Case 77: 55 year old man with a large thigh mass - epithelioid hemangioendothelioma

Case 72: Two year old boy with multiple skull masses - Langerhans cell histiocytosis

Case 66: 71 year old man with a popliteal fossa mass - synovial chondromatosis

Case 65: 37 year old woman with a wrist mass - nodular fasciitis

Case 64: 55 year old bedridden man with a hip mass - ischemic fasciitis

Case 63: 53 year old man with a recurrent, painful pretibial mass - phosphaturic mesenchymal tumor

Case 52: 33 year old man with an asymptomatic hand mass - chondroid lipoma

Case 50: 12 year old girl with superficial nodular tumor of back - superficial plexiform schwannoma

Case 47: 16 year old girl with tumor of foot - calcifying aponeurotic fibroma

Case 46: Elderly individuals with scapular masses - elastofibroma

Case 34: 24 year old man with an inguinal soft tissue discharging chalky fluid - tumoral calcinosis

Case 29: 33 year old woman with soft tissue mass of cheek - solitary fibrous tumor of dermis

Case 20: 22 year old man with Mafucci’s syndrome and painful swellings of hands and feet - spindle cell hemangioma

Case 16: 56 year old man with a retroperitoneal mass - lipomatous hemangiopericytoma

Case 15: 62 year old man with a slowly enlarging thumb mass - aggressive digital papillary adenocarcinoma

Case 10: 30 year old man with a thigh lesion - high grade myxoid / round cell liposarcoma

Case 3: 90 year old woman with recurrent soft tissue tumor from the ankle region - sclerosing epithelioid fibrosarcoma


End of Case of the Week page - sorted by Category with diagnosis



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