2023 Volume 2 Issue 4 Pages 304-309
Herein, we report a rare, resected case of a hemorrhagic hemangioma originating in contiguity with a peribiliary cyst, which was misdiagnosed as an intraductal papillary neoplasm of the bile duct (IPNB).
A 74-year-old woman was referred to our department for the inspection of a nodular lesion that had emerged within a cystic lesion in the posterior segment of the liver. The cystic lesion had originally been pointed out 7 years before the appearance of the nodule; the nodule increased in size over a short period and was accompanied by contrast enhancement. In addition, a plain CT after an endoscopic retrograde cholangiography (ERC) suggested a communication between the cystic lesion and the bile duct.
As a malignant neoplasm such as IPNB could not be ruled out, surgery was performed. The pathological results revealed that the nodule was a hemorrhagic hemangioma and the cystic lesion was a peribiliary cyst; the hemangioma had compressed the cyst. Several reports of hemorrhagic liver cysts can be found in medical literature, but the coexistence of a hemorrhagic hemangioma and a peribiliary cyst has not been previously reported. A surgical approach is recommended when the possibility of a neoplastic cystic lesion cannot be ruled out by imaging studies.
