Juvenile granulosa cell tumor


  • Rare benign testicular gonadal stromal tumor

Clinical features


  • Typically occurs in children 4 years old or younger, with most cases occurring before 1 year of age

  • Accounts for 1%–5% of all prepubertal testis tumors

  • Most common congenital testicular neoplasm and the most common cause of testicular enlargement in newborns younger than 6 months

  • Rare cases reported in adults

  • Approximately 30% reported in patients with cryptorchidism

  • Usually unilateral; rare bilateral cases reported

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