Gluteal tumoral calcinosis.

Tumoral calcinosis is an extremely rare benign condition that is characterised by deposits of calcium hydroxyapatite crystals in periarticular soft tissues. Although it is mainly located around large joints such as the hips, shoulders and elbows, it may also involve the small joints of hand and wrist. There are multiple types of tumoral calcinosis with divergent clinical characteristics but the exact cause is still unknown. We present a literature review to evaluate the location, clinical features, treatment options and results of surgical excision in this condition. Wide resection appears to lead to a good clinical outcome and a low incidence of local relapse.