Low grade central osteosarcoma- report of a rare entity with review of literature

Abstract

Low-grade central osteosarcoma (LGCO) is a rare variant of osteosarcoma (OS)which pose diagnostic difficulty to both clinicians and pathologists. A mimicker of benign conditions like fibrous dysplasia (FD), this sarcoma, if not treated appropriately, will recur as a higher-grade disease. LGCO has nonspecific radiologic and histologic features and so the primary diagnosis remains a challenge, especially in biopsy specimens. Accurate diagnosis of this lesion is mandatory as the treatment and prognosis is so different from a benign bone lesion. We report this case not just because of its rarity but also to emphasise on the importance of accurate and timely diagnosis of a sarcoma masquerading a benign lesion