A 10-year-old boy had a knee injury related to playing basketball several months ago and has attributed his ongoing left knee pain to this event. The nurse suspects osteogenic sarcoma after noting which of the following?

A palpable mass close to the knee


•An osteogenic sarcoma is a malignant tumor of the bone that primarily affects long bones such as the distal femur and proximal tibia.

•The most common, notable physical finding is a tender, palpable mass that is large in size.

•Discomfort and swelling is usually localized to the affected limb.

Incorrect options:

•Fever, weight loss, and malaise are generally not present.

•Rapid bone growth may occur, but osteogenic sarcoma is usually in the form of a tumor.

•Low back pain is not associated with osteogenic sarcoma.

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