Intratesticular prepubertal‑type mature teratoma in an infant: A case report and mini‑review of the literature.

Testicular tumors are rare in children, representing a small percentage of pediatric solid tumors, with an incidence of 2 cases per 100,000 males. Teratomas, which are the most prevalent tumors in infants, may manifest in mature, immature, or malignant forms. While mature teratomas are typically found in the abdomen, intratesticular prepubertal-type teratomas in infants are infrequent. The present study describes the case of an infant with an intratesticular mature teratoma. A 6-month-old male infant presented with right-sided scrotal swelling, which was noted by his parents. There was no family history of similar conditions, and an investigation of his medical history did not reveal any notable findings. A physical examination revealed a non-reducible, solid mass indistinguishable from the right testicle, with no signs of inflammation or systemic symptoms. A scrotal sonography confirmed a large intratesticular cyst. The levels of α-fetoprotein and β-human chorionic gonadotropin were normal. Surgical tumor enucleation was performed, and the histopathological examination revealed a benign, prepubertal-type teratoma composed entirely of mature elements. Surgical intervention is commonly used for the management of benign testicular tumors in pediatric patients, including prepubertal teratomas. This approach demonstrates an excellent prognosis as it does not elevate the likelihood of recurrence. Prepubertal-type teratomas have rarely been reported in the infantile testis. They may present as a solid mass indistinguishable from the testicle, with no signs of inflammation.