Fig. 5
From: Testicular tumours in children: an approach to diagnosis and management with pathologic correlation
Yolk sac tumour. A 19-month-old boy with a painless swollen right testicle. High level of alphaphetoprotein (3.450 ng/mL). a Longitudinal view of the right testis shows near-complete replacement by a hypoechoic solid mass (arrows) with a rim of normal parenchyma (arrowheads). b Power Doppler reveals increased blood flow within the tumour. c, d Axial fat-supressed T1 show a hypointense mass with avid enhancement of the tumour after the contrast. e Surgical piece after the radical inguinal orchiectomy