Ewing Sarcoma of the Scapula: A Rare Case of a 10-Year-Old Child With a Two-Year Follow-Up

Ewing sarcoma is a very common type of malignant bone tumor among children and adolescents that most frequently develops in long bones of the body and extremities; however, it can also affect other bones such as the skull and scapula in rare cases. In Ewing sarcoma, the most common sites of metastasis are the lungs and bones, which indicates a late stage of the disease and is considered a poor prognostic factor. In this paper, we report the case of a 10-year-old boy presenting with a painless swelling on his left shoulder that was not associated with other local or systemic symptoms, and with no neurological manifestations. Initially, Ewing sarcoma of the scapula was suspected after radiological studies, including ultrasonography, X-ray, computed tomography, and bone scintigraphy, which was eventually confirmed by histopathology and immunohistochemistry showing the typical findings of Ewing sarcoma. Ewing sarcoma of the scapula is a rare condition, with only 18 cases reported to the best of our knowledge.