CAMRT Radiography Practice Exam

What does Ewing sarcoma typically indicate in children?

1. Localized pain from a sprain

2. Infection in long bones

3. Primary malignant tumors in long bones

4. Growth plate injuries

The correct answer is: Primary malignant tumors in long bones

Ewing sarcoma is a type of primary malignant tumor that predominantly affects children and adolescents. This cancer most commonly manifests in the long bones, such as the femur, tibia, and humerus, as well as in the pelvis and chest wall. It is part of a group of tumors known as the Ewing family of tumors, which arise from primitive neuroectodermal cells. The presence of Ewing sarcoma typically presents with symptoms such as localized swelling, pain, and tenderness in the affected area, prompting further investigation through imaging and biopsy. Recognizing it as a primary malignancy is crucial for early diagnosis and appropriate treatment, which often includes chemotherapy, surgery, and radiation therapy. Other conditions mentioned, such as localized pain from a sprain, infection in long bones, and growth plate injuries, do not adequately describe the nature of Ewing sarcoma. While localized pain and swelling may be experienced, these symptoms are not specific for a sprain, nor do they indicate a benign condition. Understanding Ewing sarcoma as a malignant primary tumor in long bones helps healthcare professionals differentiate it from other potential causes of similar presenting symptoms, facilitating timely intervention and management.