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Calcifying cystic lesion of calcaneum
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Differential diagnoses include chondromyxoid fibroma, chondroblastoma, tuberculosis, chronic sclerosing osteomyelitis, simple bone cyst, aneurysmal bone cyst, clear cell chondrosarcoma, eosinophillic granuloma, fibrous dysplasia, osteoblastoma, and giant cell tumour.
The first aim was to differentiate chronic infection from neoplastic bone lesions. Acid fast bacilli culture excluded a tuberculous infection. Confirmation was achieved by performing an open biopsy and histopathological examination of the specimen. The final diagnosis of chondroblastoma was confirmed in view of there being a marked cellular chondroid component rather than fibrous component in the histology slides. Thorough curettage in such cases can provide an ample diagnostic specimen as well as being a definitive treatment, and may lead to complete recovery as found in this case.
It is important to maintain regular surveillance for at least five years in such cases with a diagnosis of chondroblastoma, with a view to detect any recurrence as soon as possible. Late sarcomatous change
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- Calcifying cystic lesion of calcaneum
- H Sharma, G R Taylor
Postgrad. Med. J. 2004 80: 241.[Extract] [Full Text] [PDF]
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