Multimodal Imaging of Hepatic Angiomyolipoma: CT and MRI Findings in a Sporadic Case.
Rodolfo Bignone, Stefano Lipia, Alberta Cappelli
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Case in brief
A female patient undergoing routine abdominal evaluation was found on CT and MRI to have a well-circumscribed liver lesion containing macroscopic fat. The imaging characteristics supported a diagnosis of hepatic angiomyolipoma, a benign mesenchymal tumor with variable adipose, smooth-muscle, and vascular components. The abstract reports that the diagnosis was confirmed through imaging analysis; it does not describe histologic confirmation or subsequent treatment.
What made this case unusual
The case highlights a sporadic hepatic angiomyolipoma identified through multimodal imaging, with macroscopic fat as a key finding in a lesion that can be difficult to distinguish from fat-containing hepatocellular carcinoma.
Diagnostic / clinical pearl
When evaluating a well-circumscribed hepatic lesion with macroscopic fat, consider hepatic angiomyolipoma alongside malignant fat-containing lesions and assess the CT and MRI characteristics.