PMC2718102_01
Axial MR images of the scrotum.. A. Sagittal sonogram of the right side of the scrotum. A well-defined hypoechoic mass (short arrows) in the tesitis and a small hypoechoic nodule adjacent to the upper pole of the testis (long arrow) are seen. Extensive hydrocele is present.. B, C. T1-weighted (A), Gd-enhanced T1-weighted (B), and T2-weighted (C) MR images reveal well-defined nodules in the testis and adjacent to it. In image B, strong peripheral enhancement is observed (arrowheads). Note that on the T2-weighted image there is a dark rim that separates normal testis from the nodule (arrows).. E. In the lower portion of the scrotum there is extensive hydrocele, and small enhancing nodules (arrowheads) are seen along the inner margin of the scrotal wall.. F. Pathologic findings of the tumor. Histopathologic specimen shows a nodule between the tunica vaginalis and the testis. Note the preservation of the inner margin of the tunica albuginea (arrows) (H and E, original magnification x40).
kjr-2-117-g001.jpg
PMC2718102_01_kjr-2-117-g001.jpg
F1
Also noted were slightly heterogeneous echogenic nodular projections attached to the inner scrotal wall (Fig. 1A). After infusion of gadopentetate dimeglumine (Gd) (Magnevist; Berlex, Wayne, N.J., U.S.A.), the peripheral portions of these nodules were markedly enhanced (Fig. 1B-E). Microscopic examination revealed that the nodules were confined to the tunica vaginalis and albuginea, without penetrating the testis, and between this and the nodules there was a clear plane of separation (Fig. 1F).