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Acalculous choleystitis imaging
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Inflamed gallbladder with exudate
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Acute (with
empyema) and
chronic cholecystitis
with gallstone
Contributed by Aaron Huber, D.O.
Hemorrhagic mucosa
Acute inflammation and erosion
Inflamed and reactive epithelium
Overview of acute cholecystitis
Imaging findings in cholelithiasis and acute cholecystitis
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Ultrasound images of gallbladder adenomyoma
Contributed by Alan A. George, D.O. and Monica T. Garcia-Buitrago, M.D.
Localized adenomyoma
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Focal adenomyoma
Contributed by Monica T. Garcia-Buitrago, M.D.
Cystically dilated biliary glands
Adenomyomatous hyperplasia / adenomyomatous nodule
Dilated biliary gland, surrounding smooth muscle
Smooth muscle hyperplasia surrounding biliary glands
Thickened smooth muscle surrounding biliary gland
Cystically dilated biliary glands, adjacent nerve
Smooth muscle surrounding cystically dilated biliary glands
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Inferior surface of the liver
Posterior and inferior surfaces of the liver
Gallbladder and bile ducts laid open
Contributed by Naziheh Assarzadegan, M.D.
Normal layers
Mucosa
Luschka ducts
Contributed by Jian-Hua Qiao, M.D.
Surface denudation / ulceration
Multiple dilated vessels in lamina propria
Widened mucosal folds
Disorganized veins and arteries
Contributed by Monica T. Garcia-Buitrago, M.D.
High grade BilIN
Contributed by Satyapal Chahar, M.D. and Monica T. Garcia-Buitrago, M.D.
Low grade dysplasia
Acute inflammation
Rokitansky-Aschoff sinus involvement
High grade dysplasia
High grade dysplasia
High grade dysplasia
High grade dysplasia
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Bismuth-Corlette classification
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Imaging of Klatskin tumor
Imaging of
perihilar
cholangiocarcinoma
ERCP, mass forming extrahepatic cholangiocarcinoma
Ultrasound,
mass forming
extrahepatic
cholangiocarcinoma
Contributed by Raul S. Gonzalez, M.D.
Perihilar
cholangiocarcinoma
Intrapancreatic cholangiocarcinoma
Cystic duct
cholangiocarcinoma
Contributed by Raul S. Gonzalez, M.D. and Andrey Bychkov, M.D., Ph.D.
Arising from IPNB
Infiltrative glands
Periampullary origin
Small dispersed glands
Adenocarcinoma
Common bile duct
Contributed by Jian-Hua Qiao, M.D.
2 pigment gallstones
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Hyperechoic homogeneous pedunculated polyps
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Multiple yellow polyps
Contributed by Raul S. Gonzalez, M.D., Andrey Bychkov, M.D., Ph.D. and Jijgee Munkhdelger, M.D., Ph.D.
Lipid laden macrophages
Normal lining epithelium
Cauliflower-like architecture
Lipid laden macrophages
Foamy lipid laden macrophages
Polypoid lesion
Stromal macrophages
Lipid laden macrophages
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Reverberation (comet tail artifact)
Cholesterolosis
Cholesterol polyp
Contributed by Faris Alshammas, M.D. and @Andrew_Fltv on Twitter
Numerous mucosal yellow specks
Cholesterolosis
Contributed by Reem Hamasha, M.D., Faris Alshammas, M.D., Andrey Bychkov, M.D., Ph.D. and Jijgee Munkhdelger, M.D., Ph.D.
Hypertrophy of gallbladder villi
Hypertrophy of a gallbladder villus
Foamy lipid laden macrophages
Foamy macrophages in lamina propria
3 small foci of foamy macrophages
Mucosal projection
Contributed by Kelsey E. McHugh, M.D.
Distended gallbladder with stones
Contracted gallbladder with stones
Thickened gallbladder wall with stones
Contributed by Kelsey E. McHugh, M.D.
Contracted gallbladder with stones
Distended gallbladder with stones
Contributed by Kelsey E. McHugh, M.D.
RA sinus
RA sinuses with inspissated bile
Mucosal atrophy
Focal intestinal metaplasia
Intestinal metaplasia
Pyloric gland metaplasia
Hyalinizing cholecystitis
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Low grade dysplasia distribution in gallbladder
Contributed by Raul S. Gonzalez, M.D. and Monica T. Garcia-Buitrago, M.D.
Cancer and dysplasia
High grade BilIN
Contributed by Raul S. Gonzalez, M.D.
Incidental finding
Prominent atypia
Associated with malignancy
Gallbladder and bile duct pathology by Dr. Adsay
Contributed by @RaulSGonzalezMD on Twitter
Contributed by @RaulSGonzalezMD on Twitter (see original post here)">
Emphysematous cholecystitis
Contributed by Kelsey E. McHugh, M.D.
Follicular cholecystitis
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Heterogeneous mass
Contributed by Ashwin S. Akki, M.D., Ph.D.
Papillary proliferation
Carcinoma in a polyp
Gallbladder cancer invading liver
Diffusely thickened gallbladder wall
Contributed by Ashwin S. Akki, M.D., Ph.D.
Desmoplasia
Well formed glands
Intermediate gland formation
Poor gland formation
Sarcomatoid differentiation
Papillary proliferation with invasion
Extended cholecystectomy
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Various images
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Tuberculosis
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Smooth surfaced polyp
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Nonneoplastic polyp with edematous stroma
Contributed by Gokce Askan, M.D. and Olca Basturk, M.D.
Prominent papillary exophytic lesion
Contributed by Gokce Askan, M.D. and Olca Basturk, M.D.
Papillary growth patterns
Tubular growth patterns
Biliary phenotype
Gastric pyloric phenotype
Gastric foveolar phenotype
Intestinal phenotype
ICPN with colloid type invasive carcinoma
ICPN with malignant cells in floating mucin
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Abdominal ultrasound
Contributed by Burcin Pehlivanoglu, M.D. and Volkan Adsay, M.D.
Detached polyp in the lumen
Back to back, small nonmucinous tubules
Back to back, nonmucinous tubules
High grade dysplasia
Squamoid morules
Amyloid-like material in the stroma
Nuclei reminiscent of papillary thyroid carcinoma
Cholesterolosis in the stroma
Cholesterolosis in the background gallbladder
Nuclear beta catenin staining
MUC6 staining
MUC1 staining
MUC5AC
MUC2
Scattered neuroendocrine cells
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Hilar tumor whose
connective tissue
contains multiple
cysts
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Papillary
cytoarchitecture
Immunostains: CK7+, MUC1+, MUC6+, MUC5AC-
Various cysts
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Porcelain gallbladder
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Portal tract fibrosis
Bile duct with marked periductal sclerosis
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Transverse ultrasound
Sagittal ultrasound
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Intraluminal tumor
Contributed by Xiaoyan Liao, M.D.
Polypoid lesion
Eosinophilic cytoplasm
Intervening stroma
Tightly packed mucinous glands
Bland cytologic atypia
MUC5AC
MUC6
Beta catenin
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Comparative genomic hybridization
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See Registry data collection variables
Bismuth-Corlette classification
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Endoscopic ultrasound and CT
MRCP with biliary stricture
Contrast enhanced CT
CT of tumor and adjacent CBD
MRCP of tumor
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Upper endoscopy
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Hepatectomy with hilar nodules
Gross features of neuroma
Remnant cystic duct with tumor
Contributed by Naziheh Assarzadegan, M.D., Saba Hassan, M.B.B.S. and Kristin Olson, M.D. (Case #329)
Haphazard proliferation of nerve fascicles
Haphazard nerve fascicles in collagenous stroma
Nerve fascicles
Solid, well circumscribed lesion
Disorganized nerve bundles
Disorganized, thickened nerve bundle
Foreign body type giant cell reaction
S100
Haphazard proliferation of nerve fibers
Lesion with focus of inflammation
Interface with the adjacent glands
Lesion and adjacent bile ducts
Haphazard arrangement of thickened nerve bundles
Nerve bundles
Cytologic features
Contributed by Amira Elbendary, M.B.B.Ch., M.Sc. and Soon Auck Hong, M.D., Ph.D.
Transmural inflammation
Foamy histiocytes
Greenson: 2019
IARC: 2019
Odze: 2022
Saxena: 2017
Srivastava: 2023
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