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Intrahepatic biliary papilloma morphologically similar to biliary cystadenoma
Author(s) -
AOKI SHIGERU,
OKAYAMA YASUTAKA,
KITAJIMA YASUHIRO,
HAYASHI KAZUKI,
IMAI HIDETO,
OKAMOTO TETSU,
AKITA SHINJI,
GOTOH KAZUO,
OHARA HIROTAKA,
NOMURA TOMOYUKI,
JOH TAKASHI,
YOKOYAMA YOSHIFUMI,
ITOH MAKOTO
Publication year - 2005
Publication title -
journal of gastroenterology and hepatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.214
H-Index - 130
eISSN - 1440-1746
pISSN - 0815-9319
DOI - 10.1111/j.1440-1746.2005.03242.x
Subject(s) - medicine , papillary tumor , abdominal ultrasonography , lesion , papilloma , choledochal cysts , cystadenoma , cholangiography , common hepatic duct , radiology , biliary tract , cyst , bile duct , pathology , common bile duct , ultrasonography , gastroenterology , pancreas
A 37‐year‐old man presented complaining of epigastralgia. Abdominal ultrasonography revealed the presence of a papillary tumor (9 mm in diameter) in the cystic lesion (18 mm in diameter) in hepatic segment 4, which was accompanied by mild intrahepatic bile duct dilatation. Although abdominal computed tomography also showed the cystic lesion, it did not show papillary tumors inside the lesion. Endoscopic retrograde cholangiography showed the communication between the cystic lesion and the left hepatic duct. In addition, mucus was observed in the common bile duct. When transpapillary intraductal ultrasonography was performed through the left hepatic duct using a fine ultrasonic probe, a hyperechoic papillary and lobulated tumor was clearly shown in the cystic lesion. The wall of the cyst was smooth and there was no sign of tumor infiltration. Based on these findings, biliary cystadenoma was diagnosed and an extended left lobectomy was carried out. However, pathological findings postoperatively revealed that the lesion was a localized biliary papilloma, developing and extending to the intrahepatic duct. This case is rare and there have been no published reports describing a biliary papilloma morphologically similar to biliary cystadenoma.