chondroblastoma
Pronunciation: kon-droh-BLAS-toh-mah
A rare benign bone tumor arising from cartilage-forming cells, typically occurring in the epiphysis of long bones in adolescents.
Full Definition
Chondroblastoma is a benign but locally aggressive bone tumor that arises from immature cartilage cells (chondroblasts) and typically occurs in the epiphyses of long bones, particularly around the knee, shoulder, and hip. These tumors predominantly affect adolescents and young adults, with a characteristic appearance on imaging showing a well-defined lytic lesion often surrounded by sclerosis and containing calcifications. Despite their benign nature, chondroblastomas can cause significant local destruction and may rarely metastasize to the lungs. Treatment typically involves curettage with adjuvant therapy to reduce recurrence rates.
Usage
Usage note: Sometimes called Codman tumor after the surgeon who first described it.
In Context
- "The epiphyseal location and patient age strongly suggested a diagnosis of chondroblastoma." — Diagnostic reasoning
- "Histologic examination confirmed chondroblastoma with the characteristic multinucleated giant cells and calcifications." — Pathology report