Imaging features of CT and MR in hepatic perivascular epithelioid cell tumor: case series and literature review

Hepatic PEComa is a rare tumor with no typical clinical manifestations, and laboratory tests usually show no significant abnormalities. CT and MRI are valuable in preoperative diagnosis. When a lesion exhibits prominent arterial phase enhancement along with thickened and tortuous vessels, and there are no specific findings in the clinical history and laboratory tests, hepatic PEComa should be included in the differential diagnosis.