chondroblastoma

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chondroblastoma

 [kon″dro-blas-to´mah]
a benign tumor arising from young chondroblasts in the epiphysis of a bone.

chon·dro·blas·to·ma

(kon'drō-blas-tō'mă),
A benign tumor arising in the epiphyses of long bones, consisting of highly cellular tissue resembling fetal cartilage.

chondroblastoma

/chon·dro·blas·to·ma/ (kon″dro-blas-to´mah) a usually benign tumor derived from immature cartilage cells, occurring primarily in the epiphyses of adolescents.

chondroblastoma

[kon′drōblastō′mə] pl. chondroblastomas, chondroblastomata,
a benign tumor, derived from precursors of cartilage cells, that develops most frequently in epiphyses of the femur and humerus, especially in young men. The lesions may contain scattered areas of calcification and necrosis. Also called Codman's tumor.

chondroblastoma

A benign tumour that arises in the epiphysis or in secondary ossification centres of long bones (humerus, proximal and distal femur, proximal tibia) of young adults (< age 30).

Imaging
Well-defined lytic lesion with a fluffy cotton-wool appearance, ± sclerotic border.

chon·dro·blas·to·ma

(kon'drō-blas-tō'mă)
A benign tumor arising in the epiphyses of long bones, consisting of highly cellular tissue resembling fetal cartilage.

chondroblastoma

uncommon, painful or asymptomatic benign bone lesion of knee, talus and calcaneum, presenting on radiograph as a clearly defined round or oval bone lesion with a sclerotic border (see Table 1)
Table 1: Tumours arising in bone
Bone tumour typeExamples occurring in lower limb/foot
BenignAneurysmal bone cyst
Solitary osteochondroma
Simple/solitary bone cyst
Osteoid osteoma
Giant-cell tumour
Enchondroma
Chondroblastoma
MalignantChondrosarcoma
Ewing's sarcoma
Osteogenic sarcoma

chondroblastoma

a benign tumor arising from young chondroblasts in the epiphysis of a bone.
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References in periodicals archive ?
Most of the cases were for treatment of benign bony conditions such as giant cell tumor, UBC, ABC, enchondromas, and chondroblastomas.
Bone grafts, substitutes, and augments in benign orthopaedic conditions: current concepts
Chondroblastomas are, generally, well-circumscribed lesions involving the medullary cavity.
Subchondral chondroblastoma of the distal femur--a case report
Chondroblastomas are in epiphyseal location in immature skeleton with internal calcifications.
Multicentric synchronus gaint cell tumor: a case report
Chondroblastomas are more common in men in their second or third decade.
MRI of the foot
Chondroblastomas may be mistaken for GCTs because of their subarticular location.
Giant cell tumor
97,98) DOG1 has also recently been found to be positive in the cellular areas of 100% (9 of 9) of chondroblastomas and may have utility in diagnosing this lesion.
An Update on the Application of Newly Described Immunohistochemical Markers in Soft Tissue Pathology
Chondroblastomas usually originates from epiphyseal and apophyeal regions of long bones like humerus, tibia or femur.
A rare cartilaginous tumor of the talus
In BST pathology, various tumors were reclassified, notably 3 cases with an external diagnosis of benign cartilaginous tumors (2 chondroblastomas and 1 enchondroma) that were revised and confirmed by subsequent surgery as osteosarcoma (2 cases) and chondrosarcoma (1 case).
Outside case review of surgical pathology for referred patients: the impact on patient care
Unusual benign and malignant chondroid tumors of bone: a survey of some mesenchymal cartilage tumors and malignant chondroblastic tumors, including a few multicentric ones, as well as many atypical benign chondroblastomas and chondromyxoid fibromas.
Mesenchymal chondrosarcoma: clinicopathologic study of 20 Cases
From the surgical pathology files of the State University of New York-Upstate Medical University Hospital in Syracuse, New York, from 1994 to 2009, 78 cases of giant cell lesions of bone and soft tissues, including 23 giant cell tumors of bone, 8 primary aneurysmal bone cysts, 15 tenosynovial giant cell tumors, 12 chondroblastomas, 4 giant cell reparative granulomas, 6 non-ossifying fibromas, 2 fibrous dysplasias, 4 pigmented villonodular synovitides, and 4 osteosarcomas with giant cells, were retrieved.
p63 expression in giant cell-containing lesions of bone and soft tissue
For instance, chondroblastomas almost always arise in the epiphysis.
Protocol for the examination of specimens from patients with tumors of bone
Chondroblastoma (CBT) is a rare, cartilage-producing bone tumor that tends to occur in the long bones of skeletally immature individuals.
Chondroblastoma: An Update

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