Case of the Week - by diagnosis
Last revised 8 October 2008
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Cases by diagnosis (click here for cases by clinical history, here for cases by category)
Case 131: 76 year old woman with hematuria - malakoplakia of bladder
Case 130: 27 year old woman with a swelling of the fibula - myeloid sarcoma
Case 129: 52 year old man with anal condyloma - coexisting syphilis
Case 128: 29 year old man with hydronephrosis - renal tuberculosis
Case 127: 56 year old woman with celiac sprue and nodular areas in the antrum - MALT lymphoma
Case 126: 19 year old man with hypertension and renal insufficiency - preB acute lymphoblastic leukemia / lymphoma
Case 125: 62 year old woman with post-menopausal bleeding - metastatic lobular carcinoma to a tamoxifen-associated endometrial polyp
Case 124: 55 year old man with duodenal polyp - gastric metaplasia/heterotopia
Case 123: 1 year old boy with neck mass - lipoblastoma
Case 122: 43 year old man with testicular tumor - Leydig cell tumor
Case 121: 33 year old woman with pancreatic mass - solid pseudopapillary neoplasm
Case 120: 88 year old woman with abnormal CBC - B cell prolymphocytic leukemia
Case 119: 17 year old woman with intraventricular mass - central neurocytoma
Case 118: 60 year old man with lower leg edema - angiomyomatous hamartoma of lymph node
Case 117: 70 year old man with prostatectomy - pseudohyperplastic variant of prostatic adenocarcinoma
Case 116: 60 year old man with scalp nodule - epithelioid variant of benign fibrous histiocytoma
Case 115: 61 year old man with eyelid swelling - cysticercosis
Case 114: 47 year old woman with left ventricular mass - leiomyosarcoma
Case 113: 24 year old woman with abdominal skin lesion - pigmented epithelioid melanocytoma
Case 112: 76 year old man with nasopharyngeal mass - Warthin’s tumor
Case 111: 71 year old man with filum terminale mass - myxopapillary ependymoma
Case 110: 47 year old man with low back pain - chordoma
Case 109: 58 year old woman with post-menopausal bleeding - melanoma of uterus
Case 108: 86 year old woman with neck pain and difficulty swallowing - ectopic parathyroid tissue
Case 107: 37 year old man with skin lesion in the back - retiform hemangioendothelioma
Case 106: 35 week fetus with distended abdomen - meconium peritonitis
Case 105: 6 year old boy with bilateral pulmonary infiltrates - acute eosinophilic pneumonia
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 102: 28 year old man had a history of ulcerative colitis - cap polyposis
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 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 97: 29 year old man from India with nasal mass - Rhinosporidiosis
Case 96: 55 year old woman with a pelvic mass - adult granulosa cell tumor
Case 95: 55 year old man with a nodular patch in the cecum at colonscopy - hairy cell leukemia
Case 94: 57 year old man with tumor of renal pelvis - signet ring cell adenocarcinoma
Case 93: 63 year old woman with axillary mass - Castleman’s disease-hyaline vascular variant
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 90: 33 year old woman with clinical appendicitis - Enterobius vermicularis infestation
Case 89: 22 year old woman with cervical adenopathy and no other medical history - Kikuchi’s disease
Case 88: 13 month old girl with incidental liver mass - focal nodular hyperplasia
Case 87: 41 year old HIV+ man with pancytopenia and skin nodules - Leishmaniasis
Case 86: 39 year old woman with a small intestinal mass - inflammatory fibroid polyp
Case 85: 66 year old man with a radical prostatectomy for prostatic adenocarcinoma - bilateral seminal vesicle amyloidosis
Case 84: 58 year old woman with chronic sinusitis - sinonasal hemangiopericytoma
Case 83: 72 year old woman with renal pelvis mass - mixed epithelial and stromal tumor
Case 82: 57 year old man with papillary lesions on his palate - verruciform xanthoma
Case 81: 36 year old man with a duodenal mass - follicular dendritic cell sarcoma
Case 80: 28 year old man with a red thigh nodule for 6 months suggestive of Kaposi’s sarcoma - microvenular hemangioma
Case 79: An elderly man with an enlarged supraclavicular lymph node - CLL/SLL, paraimmunoblastic variant
Case 78: 65 year old woman with a left atrial mass - cardiac myxoma with glandular differentiation
Case 77: 55 year old man with a large thigh mass - epithelioid hemangioendothelioma
Case 76: 49 year old man with an inguinal mass - tubulocystic clear cell carcinoma of prostate with femoral nodal metastases
Case 75: 57 year old man with a CNS intraventricular mass - subependymoma
Case 74: 65 year old woman with backache, abnormal plasma cells but a normal serum protein electrophoresis - light chain multiple myeloma
Case 73: 66 year old man with a cyst-like lesion of the mandible - primary intraosseous odontogenic verrucous carcinoma
Case 72: Two year old boy with multiple skull masses - Langerhans cell histiocytosis
Case 71: 64 year old woman with pruritic, erythematous plaques on her abdomen and back - erythema gyratum repens
Case 70: 47 year old woman with a multilocular hepatic cyst - mucinous biliary cystadenoma
Case 69: 34 year old man with a scrotal abscess - epithelioid sarcoma
Case 68: 84 year old woman with a breast nodule - apocrine carcinoma
Case 67: 2 year old with an abdominal mass - neuroblastoma
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 62: 22 year old woman with an enlarging breast mass - sclerosing lobular hyperplasia
Case 61: 15 month old boy with an asymptomatic liver mass - mesenchymal hamartoma
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 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
Case 56: 85 year old Mexican woman with pruritic and scaly plaques on her trunk - pemphigus foliaceus
Case 55: 50 year old woman with an ileocecal mass - endometriosis
Case 54: 59 year old woman with a slow growing parotid mass - epithelial-myoepithelial carcinoma
Case 53: HIV positive woman from Ghana with large vulvar mass - hypertrophic herpes simplex virus in HIV positive patient
Case 52: 33 year old man with an asymptomatic hand mass - chondroid lipoma
Case 51: 56 year old man with large, cystic renal lesion - tubulocystic carcinoma
Case 50: 12 year old girl with superficial nodular tumor of back - superficial plexiform schwannoma
Case 49: 68 year old woman with large soft palate tumor - sialolipoma of soft palate
Case 48: 50 year old woman with well encapsulated renal mass - papillary renal cell carcinoma, solid variant
Case 47: 16 year old girl with tumor of foot - calcifying aponeurotic fibroma
Case 46: Elderly individuals with scapular masses - elastofibroma
Case 45: 72 year old woman with lumpectomy for mammographic calcifications - neuroendocrine DCIS
Case 44: 20 year old woman with liver mass identified after childbirth - inflammatory pseudotumor
Case 43: 44 year old man with a 1 mm incidental renal mass at nephrectomy - papillary adenoma
Case 42: 63 year old man with painful cheek mass - acinic cell carcinoma of parotid gland
Case 41: 72 year old woman with multiple strokes - intravascular lymphoma
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 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
Case 37: 48 year old woman with a mammary fibroadenoma containing atypical cells - fibroadenoma with bizarre stromal giant cells
Case 36: 7 year old girl with fine needle aspiration of a chest mass - anaplastic large cell lymphoma
Case 35: 54 year old woman with large breast mass and nipple discharge - cystic hypersecretory DCIS
Case 34: 24 year old man with an inguinal soft tissue discharging chalky fluid - tumoral calcinosis
Case 33: 48 year old man with a 4 cm gastric mass - gastrointestinal stromal tumor
Case 32: 44 year old woman with incidental renal mass composed of straplike cells - atypical epithelioid angiomyolipoma
Case 31: 44 year old woman with extensive tumor deposits on the omentum, uterus, tubes and ovaries - serous psammocarcinoma
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 29: 33 year old woman with soft tissue mass of cheek - solitary fibrous tumor of dermis
Case 28: Elderly man with a fixed neck mass - adenoid cystic carcinoma of larynx extending to thyroid gland
Case 27: 22 year old woman with worsening pelvic pain - chronic myelogenous leukemia
Case 26: 29 year old man with a testicular mass - mixed germ cell tumor
Case 25: 61 year old woman with suspicious microcalcifications on mammography - calcium oxalate microcalcifications
Case 24: 43 year old man with chronic sinusitis and a nasal polyp - respiratory epithelial adenomatoid hemartoma
Case 23: 80 year old man with a lung nodule and enlarged mediastinal lymph nodes - epithelioid angiosarcoma
Case 22: 51 year old man with symptomatic anemia and gastric masses - metastatic renal cell carcinoma
Case 21: 64 year old Japanese woman with multiple opportunistic infections - adult T cell leukemia / lymphoma
Case 20: 22 year old man with Mafucci’s syndrome and painful swellings of hands and feet - spindle cell hemangioma
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
Case 17: 61 year old woman with a mediastinal mass - thymic carcinoma
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 14: 17 year old woman with loosening of lower incisors - central giant cell granuloma of mandible
Case 13: 31 year old woman with a pancreatic mass - desmoplastic small round cell tumor of pancreas
Case 12: 22 year old woman with an ovarian mass - dysgerminoma
Case 11: Postmenopausal woman with a breast mass - colloid (mucinous) carcinoma of the breast
Case 10: 30 year old man with a thigh lesion - high grade myxoid / round cell liposarcoma
Case 9: 47 year old man with a pleural based lesion - schwannoma
Case 8: 52 year old woman with a breast mass - secretory carcinoma of the breast
Case 7: 19 year old man with lump on wrist - cellular blue nevus
Case 6: 66 year old woman with a well circumscribed breast mass - metaplastic carcinoma of the breast
Case 5: 20 year old woman with an “extranumerary nipple” - juvenile xanthogranuloma
Case 4: 59 year old woman with a breast mass - invasive micropapillary carcinoma of the breast (metastatic to lymph node)
Case 3: 90 year old woman with recurrent soft tissue tumor from the ankle region - sclerosing epithelioid fibrosarcoma
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