Apparent diffusion coefficient (ADC) analyses of endometrial lesions. MRI identified a endometrial carcinoma invading the endometrial cavity with intermediate signal intensity on axial oblique T2-weighted imaging (A) and high signal intensity on diffusion weighted imaging (DWI) (B). A region of interest (59.3 mm2) was manually defined within the smallest ADC area of the endometrial lesion on a DW-ADC image (C).