Contrast‐Enhanced Ultrasound Characteristics of Hepatic Perivascular Epithelioid Cell Tumor

Hepatic PEComa is a rare liver tumor often detected incidentally. It typically demonstrates marked homogeneous hyper-enhancement during the HAP, followed by a "FISO" enhancement pattern. Preoperative diagnosis and differentiation between benign and malignant forms of hepatic PEComa remain challenging using CUS. CEUS provides additional diagnostic characteristics for hepatic PEComas and holds value in the differential diagnosis of focal liver lesions.