Fig. 4

a Axial T1-WI revealed slight hypointense signal intensity from the endometrial lesion. b Axial T2-WI and c sagittal T2-WI revealed an increase in endometrial thickness forming a mass lesion with a high SI and inner areas of low SI; there was infiltration of the junction zone less than 50% of the myometrium which was affected. d Diffusion-weighted imaging at b = 0 and e b = 1000 showed loss of the high SI of the endometrial lesion at increased b values (benign feature). f ADC mapping showed a high SI of the endometrial mass with ADC of 1.341 × 10⁻³ mm²/s. Radiologic diagnosis: endometrial mass lesion with suspicious criteria at conventional MRI and benign features at DW and ADC images. Final diagnosis (according to histopathology): well-differentiated endometrial carcinoma