Primitive neuroectodermal tumor of the prostate in a 58-year-old man: A case report

Figure 1 Preoperative pelvic imaging. A: Contrast-enhanced computed tomography shows a large, cystic-solid mass in the pelvis; B and C: At magnetic resonance imaging (MRI), the lesion near the prostate is isointense to slightly hyperintense on T1-weighted imaging (WI), with heterogeneous intensity on T2WI; D and E: There is heterogeneous hyperintensity on diffusion-WI with opposing hypointensity on the apparent diffusion coefficient maps; F-H: The solid part is enhanced during the arterial phase on contrast-enhanced MRI, with persistent enhancement in the venous and delayed phases. No enhancement is seen in the cystic part.