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Pediatric orthopedist, pediatrician, traumatologist, surgeon

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Chondroblastoma in children

Alexey Kryvenko, medical expert
Last reviewed: 04.07.2025

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Epidemiology
Symptoms
Diagnostics

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Differential diagnosis
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Chondroblastoma is a benign cartilage-forming tumor that affects the epiphyses of tubular bones. It consists of closely spaced cellular elements of predominantly round or polygonal shape, considered chondroblasts.

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Epidemiology

Chondroblastoma accounts for 1.0-2.0% of all skeletal neoplasms. It is most often detected at the age of 10-20 years.

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Symptoms chondroblastoma in a child

Typical complaints are pain in the joint area, the intensity of which increases over time. With a long-term course of the tumor, pronounced lameness, hypotrophy of the soft tissues of the limb, and joint contracture are noted. Typical localization is the epiphyses and epimetaphyses of long tubular bones.

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Diagnostics chondroblastoma in a child

Radiographs and CT reveal an eccentrically located destruction focus in the epiphysis of the tubular bone with clear boundaries and a tendency to spread to the metaphysis. The presence of calcification zones gives the internal structure of the focus a speckled appearance. Scintigraphy records both local hypervascularization (170% on average) and hyperfixation of the radiopharmaceutical (230% on average).