MRI appearances of hepatic epithelioid hemangioendothelioma: a retrospective study of 57 patients

• DOI: 10.1186/s13244-022-01213-8
• Publication Date: 2022-04-05T11:09:36Z
• Authors: Xiaolei Liu; Hongwei Yu; Zihuan Zhang; Shuang Si; Jia Huang; Haidong Tan; Feng Teng; Zhiying Yang
• Keywords: Epithelioid Hemangioendothelioma; Neuroradiology

Hepatic epithelioid hemangioendothelioma (HEH) is extremely rare and the MRI features have never been investigated in a large group of patients.A retrospective study was designed to review images HEH patients. Two radiologists separately evaluated signal intensity (SI) on unenhanced imaging, morphological features, contrast-enhancement pattern at dynamic study. The were compared between patients with hepatic metastatic tumor (HMT).Fifty-seven included this total 412 lesions evaluated. On per-lesion analysis, rate coalescent lesion subcapsular 18.2% 39.8%, respectively. Capsular retraction lollipop sign observed 47 (11.4%) 60 (14.6%), Large (> 5 cm) had highest lesion, capsular sign. Target appeared 196 (47.6%) T2 weighted (T2W) 146 (35.4%) portal phase. Medium (2-5 target both T2W (72.9%) phase (55.2%). per-patient compare patients, HMT seldom appearance (66.7% versus 6.4%, p < 0.01), (59.6% 3.2%, 0.01) T2Wand (64.9% 12.7%, 0.01).MRI correlated size. retraction, coexistence relatively specific HEH, which could be helpful suggesting diagnosis.