Fig. 13From: Testicular tumours in children: an approach to diagnosis and management with pathologic correlationBilateral Leydig cell tumour. A 9-year-old boy with Peutz-Jeghers syndrome. a Transverse ultrasound view of both testes shows intratesticular hyperechoic lesions (arrows). b Longitudinal colour Doppler view of the right testis demonstrates no blood flow in the lesion. Bilateral intraoperative biopsy is practised resulting in Leydig cell tumour in both testes. Bilateral tumourectomy is carried out. c Microscopic view of biopsy in both testes show the same pattern: diffuse large polygonal cells with abundant eosinophilic cytoplasm, round nuclei and prominent nucleoli corresponding to Leydig tumourBack to article page