男性患儿,10岁,右侧阴囊肿块及两侧乳房肿大5个月。体检:身高150cm(显著高于同龄儿童),外生殖器如常,第二性征未发育。右阴囊有一3×3×2cm的实质肿块,硬而光滑,边缘清晰,活动,透光试验(-)。两侧乳房触及3×3×1cm肿块,质地中等、扁平块状,明显压痛。尿17-羟12.1mg/24h,17-酮3.0mg/24h。B型超声示右睾实质不均匀反射区3.5×2.5×3.4cm。右睾肿块手术切除,标本3.5×2.5×2cm,切面见一灰白结节,直径为2cm,质软均匀。光镜下见肿瘤包膜完整,瘤细胞排列成 Male child, 10 years old, right scrotum mass and swollen breasts on both sides for 5 months. Physical examination: height 150cm (significantly higher than children of the same age), external genitalia as usual, secondary sexual characteristics undeveloped. The right scrotum has a 3 × 3 × 2cm mass, hard and smooth, clear edges, activity, and light transmission (-). Breast touched on both sides of 3 × 3 × 1cm mass, medium texture, flat lumps, significant tenderness. Urine 17-hydroxy 12.1mg / 24h, 17-ketone 3.0mg / 24h. B-mode ultrasound showed uneven mass of right testes 3.5 × 2.5 × 3.4cm. Surgical resection of the right testicular mass, specimens 3.5 × 2.5 × 2cm, see a gray section nodules, a diameter of 2cm, soft and uniform. Light microscope, see the tumor capsule integrity, tumor cells arranged into