Ewing sarcoma most commonly involves which bone?

Prepare for the Hematologic, Immunologic, and Neoplastic Disorders Test. Study with flashcards and multiple-choice questions, each with explanations and hints. Get ready for your exam!

Multiple Choice

Ewing sarcoma most commonly involves which bone?

Explanation:
Ewing sarcoma has a strong tendency to arise in the diaphysis (midshaft) of long bones, and the femur is the most common site. This preference for the marrow-rich diaphyseal area explains why the femur tops the list, especially in children and adolescents. While the humerus, skull, and radius can be involved, they are less frequently affected compared with the femur.

Ewing sarcoma has a strong tendency to arise in the diaphysis (midshaft) of long bones, and the femur is the most common site. This preference for the marrow-rich diaphyseal area explains why the femur tops the list, especially in children and adolescents. While the humerus, skull, and radius can be involved, they are less frequently affected compared with the femur.

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