Rare primary mature teratoma of the liver: A case report.

Background: Primary liver teratoma is an extremely rare tumor usually affecting children under the age of 3 years. Specific signs of teratoma on ultrasound, computed tomography (CT) or magnetic resonance imaging are lacking, which makes morphology the only diagnostic tool. Misdiagnosis of a mature teratoma may lead to excessive liver resection, whereas misdiagnosis of an immature teratoma may result in spread, causing a life-threatening condition.

Perihilar cholangiocarcinoma: A different concept for radical resection.

Background: Long-term outcomes depend heavily on the possibility of performing radical resection.

Purpose: To evaluate long-term results in perihilar cholangiocarcinoma (PHC) patients from the perspective of a new understanding of radical resection.

Methods: Consecutive PHC patients who underwent surgical resection at A.