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A Rare Localisation of Osteoid Osteoma in a Young Male

Osteoid Osteoma is a benign bone tumor accounting for 10-12% of all benign bone tumors. There is an evident male: female ratio of 2:1. The far most common site of location is the long bones of the lower extremities, which accounts for approximately 50% of all osteoid osteomas. Osteoid osteoma in the hand is a rare finding, accounting for only six to 13%. When found in the hand, the phalanges are the most frequent localisation followed by the carpals. The metacarpals are the least frequent site of location of OO in the hand. We present a case of a 19-year-old male with characteristic symptoms of osteoid osteoma during a nine-month period. The patient presented with long-term pain at the tumor site with nocturnal worsening. Plain radiography and MR showed a characteristic nidus suggesting the diagnosis of osteoid osteoma. can be non-surgical treatment with the use of non-steroidal anti-inflammatory drugs. Since few reports have suggested a possible transformation of osteoid osteoma into malignant osteoblastoma, most patients are treated surgically with en-bloc resection either open or CT-guided depending on local resources.