Extragonadal Yolk Sac Tumor with Spinal Cord Compression in a Little Boy, with Complete Response to the Bleomycin, Etoposide, and Carboplatin: A Case Report and Review of the Literature

 Germ cell tumors account for 3.5 % of pediatric tumors and yolk sac tumors are the most common pure malignant germ cell tumors in children. Testis and ovary are the most common sites of involvement in children older than 2 years.

 A 20-month-old boy with a complaint of limping was described in this case report. Abdominal ultrasonography showed a 52 × 50 mm solid abdominal mass. Abdominal and pelvic computed tomography scans showed a left paraspinal heterogeneous mass. The tumor was extended into the spinal column with spinal cord compression. Four months later, at the end of chemotherapy, the tumor was completely resolved.

 Spinal cord compression is a rare presentation of yolk sac tumor (YST) and although this tumor is an uncommon malignancy, it can be cured completely.