Orthopedic Nurse Certification Practice Exam 2025 - Free Orthopedic Nurse Practice Questions and Study Guide

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In children, which type of malignant bone tumor is most frequently diagnosed?

Chondrosarcoma

Osteosarcoma

Osteosarcoma is the most frequently diagnosed malignant bone tumor in children. This type of cancer typically occurs in the long bones, such as the arms and legs, and is commonly seen in adolescents and young adults, often during periods of rapid growth. The hallmark characteristic of osteosarcoma is its association with the areas of active bone formation.

Several factors contribute to the prevalence of osteosarcoma in this age group, including its peak incidence during adolescence, which is a time of significant skeletal development. Symptoms often include localized pain and swelling, potentially leading to delays in diagnosis, but awareness of these signs can aid in prompt medical evaluation.

In contrast, chondrosarcoma, while a malignant bone tumor, is more commonly diagnosed in adults and has a different demographics and etiology. Fibrosarcoma also has a lower incidence in children compared to osteosarcoma. Leukemia, while a significant concern in pediatric oncology, primarily affects the blood and bone marrow rather than presenting as a primary bone tumor, making osteosarcoma the standout diagnosis in this context.

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Fibrosarcoma

Leukemia

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