A case of multiple hepatic angiomyolipomas with high 18 F-fl
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Angiomyolipoma (AML) of the liver is a rare benign mesenchymal tumor with positive human melanoma black-45 (HMB-45) expression and a heterogeneous composition of blood vessels, and smooth muscle cells, and adipose tissue cells, which account for the tumors varying morphological features. Most AMLs contain various amount of fat that enables detection via computed tomography (CT) or magnetic resonance imaging (MRI). However, some hepatic AMLs have low-fat contents, posing difficulties for establishing a definitive preoperative diagnosis.

Diagnostic functional positron emission tomography (PET) imaging using an 18 F-fluorodeoxyglucose (FDG) tracer is a useful technique for detecting and differentiating benign and malignant tumors. Similar to benign tumors, which tend to exhibit low FDG uptake, hepatic AMLs have been reported to exhibit similarly low uptake levels in the absence of hemorrhage. This article reports a distinct case with multiple AMLs with high FDG uptake in the liver of a 29-year-old man.

https://goo.gl/86F81P
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