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  • Title: The aneurysmal bone cyst: report of a recent case encountered in dental practice.
    Author: Buch B.
    Journal: SADJ; 2011 Aug; 66(7):316, 318. PubMed ID: 23198464.
    Abstract:
    BACKGROUND: A sixteen year-old African male with a large, hard swelling at the left gonial angle, presented at a private dental clinic in January 2009. The swelling felt warm, pulsating and was intermittently symptomatic. The unilocular, expansile lesion seen on a panoramic radiograph was provisionally diagnosed as an aneurysmal bone cyst on the basis of age, symptoms and clinical features. However, ameloblastoma was included in the differential diagnosis. METHODS: The histological examination of an incisional biopsy specimen revealed multiple blood-filled spaces separated by septa of fibrous tissue containing fibroblasts and multinucleated giant cells, thereby confirming the diagnosis of aneurysmal bone cyst. RESULTS: Unexpectedly, the patient failed to attend an appointment for curettage of the aneurysmal bone cyst by a maxillofacial surgeon. CONCLUSIONS: Over the past sixty-eight years, it had been postulated that the origin of the aneurysmal bone cyst was a secondary change in a large variety of pre-existing conditions. Other authors, however, have presented convincing evidence of the aneurysmal bone cyst as a primary lesion. More recently a cytogenetic aetiology for primary aneurysmal bone cysts has been postulated. Many factors in the aetiology of this rare and perplexing condition, however, still remain unclear.
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