Fig. 2From: Two cases of perivascular epithelioid cell tumor of the uterus: clinical, radiological and pathological diagnostic challengePreoperative pelvic MRI findings of malignant uterine PEComa (case 1, a–d). Sagittal T2-weighted (a) and axial T2-weighted (b) images showed two masses with heterogeneous hyperintensity in the uterine myometrium (arrow in a) and the lower vagina (arrow in b). Axial fat-suppressed contrast-enhanced T1-weighted images (c, d) showed the enhancement of the masses (arrows in c, d). Preoperative pelvic MRI findings of benign uterine PEComa (case 2, e, f). Axial T2-weighted (e) and fat-suppressed contrast-enhanced T1-weighted (f) images showed a well-defined, homogeneous submucosal uterine mass (arrows), showing signal intensity or enhancement similar to that of the myometrium. Note bilateral ovarian complex cystic masses with solid enhancing portions (arrowheads)Back to article page