Fig. 2. MRI finding in representative case of high-grade ESS.
88-year-old female patient with 9.0-cm high-grade ESS involving both endometrial cavity and myometrium.
A. Axial T2WI shows tumor signal higher than adjacent myometrium, with scattered intratumoral T2 hypointense bands and marginal nodularity. B. Post-contrast fat-saturated T1WI shows feather-like enhancement (arrowheads). Tumor demonstrates water restriction on DWI (C) and ADC value of 1.01 × 10−3 mm2/s on ADC map (D). ESS = endometrial stromal sarcoma