Hepatic Angiomyolipoma

Abstract

Hepatic angiomyolipomas are rare benign tumours. First reported by Ishak in 1976. Since then, the world literature showed only 32 cases including 8 autopsy findings. In this paper a retrospective analysis of the published data will be presented and the first report ofthe preoperative colour doppler and intraoperative sonography appearances will also be described.

Angiomyolipoma of the Liver: A Rare Benign Tumor Treated with a Laparoscopic Approach for the First Time

“…Several distinct AML histologic types have been identified, including the lipomatous, myomatous, angiomatous, trabecular, pelioid, inflammatory and mixed variants (8). Gross examination of hepatic AMLs usually reveals soft, solitary, well encapsulated tumors (4). The presence of cystic elements filled with hemorrhagic contents, as in the present case, is in vivo 31: 1169-1173 (2017) 1172 very rare.…”

Epithelioid Angiomyolipoma of Liver with an Inflammatory Component: A Case Report

“…They lead to considerable diagnostic problems clinically, radiologically, and pathologically because of their diverse morphology. Hepatic angiomyolipomas are difficult to diagnose radiologically if the fat content is less [ 7 ] as in our case. Macroscopically AMLs are described as solitary, well encapsulated, and soft with a yellow-to-tan or-gray cut surface [ 7 ].…”

“…Hepatic angiomyolipomas are difficult to diagnose radiologically if the fat content is less [ 7 ] as in our case. Macroscopically AMLs are described as solitary, well encapsulated, and soft with a yellow-to-tan or-gray cut surface [ 7 ]. Cystic appearance with hemorrhagic and necrotic areas is rare which added to the diagnostic difficulty in our case.…”

“…Hepatic angiomyolipomas have been classified histologically depending on the amount of various components that are vessels, smooth muscle cells, and adipocytes as angiolipomas, myolipomas, and angiomyolipomas [ 8 ]. Others classify them as lipomatous, myomatous, angiomatous and mixed, amongst which mixed is more common and is composed of equal amounts of above three tissue components [ 7 ]. The smooth muscle cells can have an epithelioid, spindle cell, intermediate or pleomorphic morphology [ 8 ].…”

“…They are seen most commonly in adult females [ 5 ] and are located in the right lobe of liver [ 6 ]. These lesions are difficult to diagnose by imaging studies, especially when the fat component is scant or absent [ 7 ]. Because of their epithelioid morphology, they may be mistaken for hepatocellular carcinoma [ 8 ].…”