Fig. 1From: Precocious puberty related to Leydig cell testicular tumor: the diagnostic imaging keysMultiparametric ultrasound. Ultrasonography of the left testicle: the tumor appeared as a hypoechoic mass surrounded by a hyperechoic rim in B-mode ultrasound (a), presenting predominant central vascularization in color Doppler (b) and ultrasensitive Doppler (c). Using shear-wave elastography, the tumor exhibited a moderate high stiffness (11.7 kPa) compared the adjacent parenchyma (6.1 kPa). Or right testicle (5.4 kPa, not shown)Back to article page