an epidemiologic study of ewing sarcoma family at shafa hospital in khozestan province-iran, a referral children cancer treatment center

abstract background ewing sarcoma is the second most frequent primary bone cancer, following osteosarcoma in children. these tumors consist of small, round, or oval cells, which are believed to derive from parasympathetic autonomic nervous system. the common clinical presentations are pain, local tenderness, fever, palpable mass, and pathologic fractures. methods and materials this study describes 47 children affected by ewing sarcoma registered since 1991 to 2007. all data were extracted from hospital admission notes and outpatient clinical records. results twenty seven patients were male and 20 were female. it is slightly more common in boys. pain, local tenderness, fever, and pathologic fractures were common presentation. majority of patients were between 10-15 years old. conclusion local tenderness, pain, and limping are important symptoms in children that should be check-up for immediate diagnosis and also proper management.