Author/Authors :
Esmaili, Heydar Ali Department of Pathology - Tabriz University of Medical Sciences, Tabriz, Iran , Niknejad, Mohammad Taghi Department of Radiology - Tabriz University of Medical Sciences, Tabriz, Iran , Mohajeri , Shiva Department of Pathology - Tabriz University of Medical Sciences, Tabriz, Iran
Abstract :
Ewing's sarcoma is one of the most common primary bone tumors of childhood. The tumor is almost always metaphyseal or diaphyseal, within long bones. In children, lesions of the epiphysis are often benign, with the most common diagnosis being chondroblastoma. Rarely, 1%-2% of Ewing sarcomas may involve epiphysis. We present a case of Ewing's sarcoma of the proximal humeral epiphysis in a 13-year-old boy. This case adds to previously reported cases of epiphyseal Ewing sarcoma and suggests that the diagnosis should be considered for pediatric epiphyseal lesions.
