Epithelioid angiomyolipoma of the liver: CT and MRI features

Jian-Song Ji,Chen-Ying Lu,Jing-Jing Song,Zu-Fei Wang,Min Xu

doi:10.1007/s00261-012-9911-5

Jian-Song Ji, Chen-Ying Lu + Show 3 more

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https://doi.org/10.1007/s00261-012-9911-5

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Abstract

The purpose of our study was to retrospectively evaluate the computed tomography (CT)/magnetic resonance imaging features of epithelioid angiomyolipoma of the liver (Epi-HAML), with pathology as a reference. We reviewed the CT/MRI findings of six lesions of Epi-HAML and found absence of adipose tissue in the lesions. In addition, recognizing the imaging features of no capsule, and hypervasularity with central punctiform or filiform vessels as a characteristic enhancement may distinguish Epi-HAML from other hepatic tumors.

Highlights

The purpose of our study was to retrospectively evaluate the computed tomography (CT)/magnetic resonance imaging features of epithelioid angiomyolipoma of the liver (Epi-HAML), with pathology as a reference
Epithelioid AML of the liver (Epi-HAML) is a rare tumor of unpredictable behavior, that contains no or only a minimal amount of adipose tissue and is difficult to distinguish from other hypervascular tumors [1,2,3]
Rare reports of Epi-HAML diagnosed by CT and MRI are in the literature

Summary

Introduction

The purpose of our study was to retrospectively evaluate the computed tomography (CT)/magnetic resonance imaging features of epithelioid angiomyolipoma of the liver (Epi-HAML), with pathology as a reference. Angiomyolipoma (AML) of the liver is an uncommon benign tumor, with abundant fatty component that can be diagnosed by CT or MRI. Epithelioid AML of the liver (Epi-HAML) is a rare tumor of unpredictable behavior, that contains no or only a minimal amount of adipose tissue and is difficult to distinguish from other hypervascular tumors [1,2,3]. Rare reports of Epi-HAML diagnosed by CT and MRI are in the literature. We analyzed six lesions of Epi-HAML by CT and MRI, and described the imaging features of the tumor in order to achieve a better understanding of this disease

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