Discussion
Diagnosis With Brief Discussion
- Diagnosis
- Enchondromatosis (Ollier Disease)
- Radiologic Findings
- Figure 1. Multiple expansile osteolytic lesions with chondroid calcification in the ribs are shown on chest radiograph.
Figure 2. On chest CT, there is a bulging contoured osteolytic lesion with stippled calcification in the rib.
Figure 3. There are multiple masses in all phalanges and some of them developed to chondrosarcomas.
Figure 4. Chrondrosarcoma also developed in both pelvic bones.
- Brief Review
- The enchondroma is a tumor that develops in the medullary cavity and is composed of lobules of hyaline cartilage. Typical sites of involvement are the humerus, femur, and tibia. Rare areas of skeletal localization are the skull, facial bones, patella. clavicle, sternum, scapula, ulna and vertebrae. The enchondromas in the ribs may lead to osseous expansion, designated as enchondroma protuberans, that simulates the appearance of an osteochondroma, or to massive enlargement of the bone. The radiographic appearance of enchondromas is usually characteristic. A well-defined, medullary lesion with some degree of calcification, a lobulated contour, and endosteal erosion allow precise diagnosis in most cases. Cortical expansion or thickening and pathologic fracture are other potential radiographic characteristics.
Chondroid lesions of the ribs are always seen at or near the anterior end of the rib. Therefore, lesions at the costochondral junction, especially if calcified, are suggestive of a chondroid origin. Enchondroma, which cause focal expansion of the rib, may be seen and may be diagnosed if typical chondroid calcification-“rings and arcs” pattern-can be demonstrated.
Enchondromatosis (Ollier’s disease) is rare and nonhereditary, consisting of multiple, asymmetrically distributed intraosseous cartilaginous foci and subperiosteal deposition of cartilage, either exclusively or predominantly involving one side of the body; the affected bones are often shortened and deformed.
Chondrosarcoma is the dominant malignant tumor encountered, although other neoplasms of of the soft tissue, such as hemangiosarcoma, lymphangiosarcoma, and fibrosarcoma are reported.
- References
- 1. Resnick D, Kyriakos M, Greenway GD. Tumors and tumor-like lesions of bone: imaging and pathology of specofoc lesions. In Resnick D, Manke D. Diagnosis of bone and joint disorders, 2nd ed. W.B. Saunders Company, Philadelphia; 1988, p3679-3688.
2. Guttentag AR, Salwen JK. Keep your eyes on the ribs: the spectrum of normal variants and diseases that involve the ribs. RadioGraphics 1999;19:1125-1142.
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- Keywords
- Chest wall, Multiple organ, Benign tumor,