Chondroblastoma (Subscribe)  

* age: 10 - 30
* occur in young kids before physeal plate closes
* epiphysis
* XR: lucency in epiphysis, speckled calcifications
* 25-50% calcify

"A usually benign tumor composed of cells which arise from chondroblasts or their precursors and which tend to differentiate into cartilage cells. It occurs primarily in the epiphyses of adolescents. It is relatively rare and represents less than 2% of all primary bone tumors. The peak incidence is in the...

AKA “Codman’s tumour”
Definition
Benign cartilage lesion
But aggressive/ frankly malignant behaviour reported
Arises in secondary ossification centre
Develops until physis closes

Chondroblastoma is a rare, aggressive tumor of bone composed of immature chondroblasts and a scant chondroid matrix. The cell of origin is thought to arise from the epiphyseal plate or some remnant of it. Chondroblastoma is an epiphyseal lesion found primarily in long bones of adolescents. It represents 1%...

A chondroblastoma is a rare, usually benign, tumor of bone, which accounts for approximately 1% of all bone tumors. In 1931, Codman classified it as a chondromatous variant of giant cell tumors when he described these lesions in the proximal humerus. A decade later, Jaffe and Lichtenstein renamed Codman tumor...

Objectives
1. Describe the usual age of diagnosis, radiographic features, and usual anatomic sites of chondroblastoma
2. Discuss the natural history and treatment of chondroblastoma

Section of Orthopedics Hyperguide

Chondroblastoma is a rare benign cartilaginous neoplasm that characteristically arises in the epiphysis of a long bone in young patients
Contents - Introduction Differentials Radiograph CT Scan MRI Ultrasound Nuclear Medicine Angiography Intervention Pictures Bibliography

Illustrated cases

Discussion: - age at presentation: - most common primary epiphyseal tumor in children is chondroblastoma; - most commonly arises between ages 10 to 30; ...

chondroblastoma