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MR images of a leiomyosarcoma in a 54-year-old woman. (A) voluminous leiomyosarcoma with an intermediary T2W signal and irregular borders (arrow). Part of the leiomyosarcoma demonstrates a diffusion restriction with low (B) ADC values and high signal on the (C) b-1000 sequence. (D) post injection of gadolinium T1W sequence shows the absence of central enhancement consistent with central necrosis. All features are characteristic of malignancy within a leiomyoma.
