Aneurysmal bone cyst of the second metatarsal.

Aneurysmal bone cyst of the second metatarsal has infrequently been reported in the literature. Its characteristics can mimic various other bone tumors. While radiographic appearance usually typifies this lesion, microscopic evaluation is paramount for a definitive diagnosis. There are various treatment alternatives for this lesion depending on size, the patient's age and radiographic appearance. After evaluating the patient's age and size of lesion in their case study, the authors recommended total excision of the bone cyst with autogenous grafting. The need for rigid external fixation was emphasized. These factors combined to produce satisfactory results in this case study that involved over 2 years of postoperative evaluation.