Retroperitoneal Ewing Sarcoma among Asian Patients: A Case Report and Review of Literature

Retroperitoneal Extraosseous Ewing Sarcoma (EES) is a rare malignancy and poses diagnostic and management challenges. We present a case report of a 32-year-old Malay male who experienced persistent abdominal distension with constitutional symptoms. Imaging studies revealed an aggressive retroperitoneal mass with lymphadenopathy and local invasion. The diagnosis of retroperitoneal EES was confirmed through histopathological examination. The patient's condition persisted, but he refused surgical intervention. To address the persistent pain, the patient underwent coeliac plexus block and neurolysis. We also reviewed case reports regarding retroperitoneal EES for better insight into the management of this rare sarcoma.