Fig. 4
From: Pure dysgerminoma of the ovary: CT and MRI features with pathological correlation in 13 tumors
A 13-year-old girl with dysgerminoma in the right ovary. a Sagittal T2-weighted image shows an isointense mass with multiple hyperintense foci. b Thick septa (arrows) display as low density on pre-contrast CT scan. c The mass has a contrast enhancement similar to muscles. The septa have slight enhancement except for a linear marked enhancement on edge which indicating blood vessels in septa (black arrows). Twist ovarian vascular pedicle (white arrows) is present indicating a torsion of right adnexa. d The photomicrograph (H&E, 100×) shows thick edematous fibrous septa (star)