Table 1 The 2016 WHO classification of testicular tumours
From: Testicular tumours in children: an approach to diagnosis and management with pathologic correlation
Germ cell tumours unrelated to germ cell neoplasia in situ (non-GCNIS) | Spermatocytic tumour Yolk sac tumour, prepubertal type Teratoma, prepubertal type - Dermoid cyst - Epidermoid cyst - Differentiated neuroendocrine tumours Mixed teratoma and yolk sac tumour, prepubertal type |
Germ cell tumours derived from germ cell neoplasia in situ (GCNIS) | Seminoma Embryonal carcinoma Yolk sac tumour, postpuberal type Choriocarcinoma Teratoma, postpuberal type Mixed germ cell tumours Regressed germ cell tumours |
Sex cord-stromal tumours | Leydig cell tumour Sertoli cell tumour Granulosa cell tumour |
Tumour containing both germ cell and sex cord-stromal elements | Gonadoblastoma |
Haematolymphoid tumours | |
Tumours of collecting duct and rete testis | |
Miscellaneous |