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. 2020 Jun 22:614–755. doi: 10.1016/B978-0-323-01970-5.50014-2

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Fig. 12-16 — Testis from an 11-year-old boy. Germ cell development varies from one tubule to another. The number of spermatogonia is lower than that of the adult testes. Residual immature Sertoli cells show elongated nuclei with small nucleoli. Leydig cells are scant.