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ABDOMEN / Hepatobiliary   82 / F,  Incidentally detected GB lesion
About Author
Authors Sang Won, Kim
Institution Kyung Hee University Hospital at Gangdong
E-mail rad2000@daum.net
About Case
Chief complaint
or Title
Incidentally detected GB lesion
Subspecialty ABDOMEN / Hepatobiliary
Classification Neoplasm, benign / cyst
Age 82 Sex F
Difficulty For resident, For specialist
Modality CT
Case Figures
Click above Figure for more images.
What’s your diagnosis?
Diagnosis Mucinous cystic neoplasm (MCN)


Previously known as hepatobiliary cystadenoma/cystadenoca.

Very rare in GB: first report (Simmons et al., in1989)


Lining epithelium: mucin-rich columnar cells + ovarian stroma

± atypical tumor cells

Gross pathology & radiologic

Multilocular cystic mass within the GB wall

May similar to MCN in the liver, bile duct, and pancreas

May mimic appearance of adenomyomatosis

DDx: Adenomyomatosis (linear arrangement)

           MCN (more large &
multilocular appearance)

References Terada T, Takeuchi T, Taniguchi M. Hepatobiliary cystadenocarcinoma with cystadenoma elements of the gall bladder in an old man. Pathol Int. 2003 Nov;53(11):790-5.
Rooney TB, Schofer JM, Stanley MD, Banks SL. Biliary cystadenoma of the gallbladder. AJR Am J Roentgenol. 2005 Dec;185(6):1571-2.
Keywords gallbladder, mucinous cystic neoplasm (MCN)
Attachment File -

Number of Applicants : 35
Correct Answer 16
Higashi-Ohmi General Medical Center Akitoshi Inoue
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