title: Ruptured hepatic epithelioid angiomyolipoma: a case report and literature review.
abstract: A 38-year-old male was admitted to our hospital due to upper abdominal pain. Computed tomography revealed a hepatic angiomyolipoma (AML; 10.5 × 9.5 × 7.0 cm in size), which had ruptured into the space between the liver and the diaphragm. Following transcatheter arterial embolization, surgical resection was performed. The tumor consisted of epithelioid cells (50-60%), mature fat (40-50%), and thickened-wall blood vessels. Considering the amount of epithelioid cells and their positivity for E-cadherin and β-catenin, the tumor was diagnosed as hepatic epithelioid AML. Cases of ruptured hepatic AML are rare. To the best of our knowledge, this is the sixth case reported in the English literature.
authors.affiliation: Department of Pathology, Shizuoka Saiseikai General Hospital, Shizuoka, Japan.
authors.forename: Shogo
authors.initials: S
authors.lastname: Tajima
authors.affiliation: Department of Surgery, Shizuoka Saiseikai General Hospital, Shizuoka, Japan.
authors.forename: Akira
authors.initials: A
authors.lastname: Suzuki
authors.affiliation: Department of Surgery, Shizuoka Saiseikai General Hospital, Shizuoka, Japan.
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Suzumura
keywords: Hepatic epithelioid angiomyolipoma; Rupture; Surgical resection; Transcatheter arterial embolization