Hallux valgus deformity of foot with tumoral calcinosis: an unusual presentation.

Tumoral calcinosis is an uncommon disorder and characterized by development of calcified masses within the soft tissues near the large joints such as the hip, elbow, and shoulder and rarely occurs in the foot. We report a case of tumoral calcinosis at the first meta-tarso-phalangeal (MTP) joint of foot with hallux valgus deformity associated with bunion which required resection. Surgical excision of the calcific mass alone, without surgery to the minimal hallux valgus, resulted in resolution of symptoms, without recurrence of the lesion. Subsequently, speculative etiology, differential diagnostic considerations as well as the therapeutic interventions for tumoral calcinosis are discussed taking into consideration the current literature. We conclude that tumoral calcinosis should be considered in the differential diagnosis of a painful mass that develops in the small joints of the foot.