Fig. 4

Imaging findings with Oncologically Relevant Findings Reporting and Data System (ONCO-RADS) category 4 in abdominal region and ONCO-RADS category 5 in pelvic region. In 75-year-old man, 3.6-cm exophytic mass (arrows) from lesser curvature of stomach is depicted on axial T2-weighted image (A) and T1-weighted images before (B) and after (C) contrast enhancement. Diagnosis of stromal cell tumor was given after laparoscopic resection. Axial T2-weighted image (D) revealed focal lesion (arrowheads) in left transition zone with low signal intensity, measuring more than 1.5 cm. Lesion shows marked diffusion restriction on diffusion-weighted imaging (E) and corresponding apparent diffusion coefficient map (F) and was classified as ONCO-RADS category 5. Prostate cancer was confirmed in 58-year-old man after biopsy directed by cognitive MRI-transrectal-ultrasound fusion technique