A rare presentation of recurrent undifferentiated embryonal sarcoma of the liver with peritoneal and splenic metastases: case report and literature review.

Undifferentiated embryonal sarcoma of the liver (UESL) is a rare, aggressive pediatric malignancy with a high recurrence rate. We present a case of a 16-year-old male with recurrent UESL and rare peritoneal and splenic metastases. Despite initial complete surgical resection, the tumor recurred, necessitating further surgeries and chemotherapy.