Calcifying cystic lesion of calcaneum.

A 28 year old woman of Asian origin presented with a seven year history of intermittent right heel pain. She had no history of trauma. She had suffered from intestinal tuberculosis in childhood, which was confirmed after a histological examination of the appendix. There were no other musculoskeletal sites involved. Systemic examination was unremarkable, but examination of the foot and ankle disclosed a significant medial calcaneal tenderness without limitation of ankle and subtalar motion. Haematological and biochemical markers were within normal limits. Lateral (fig 1) and axial