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Yolk sac tumors (YST) are commonly encountered gonadal germ cell tumors in children, especially in the prepubertal age group. In addition to gonadal primary, it can occur in multiple extragonadal sites, of which sacrococcygeal, retroperitoneum, gastric and mediastinum are the commonest. There are 4 previous reports of primary penile YST. We describe a primary penile yolk sac tumor in a child with achondroplasia. Yolk sac tumor can occur in the penis during the prepubertal period. Penile yolk sac tumor associated with achondroplasia has not been previously reported, but this could be incidental.

Yolk Sac Tumour Arising in the Glans Penis an Achondroplasic Child: A Case Report with Summary of Prior Published Cases