Tumoral calcinosis of the plantar forefoot. a case report and review of the literature

Tumoral calcinosis of the plantar forefoot is an uncommon benign condition resulting from deposits of hydroxyapatite crystals in periarticular soft tissue. The pathogenic mechanism remains to be clarified. This condition is generally observed in young subjects and a hereditary pattern is often discovered. We report the clinical, radiological, and biological findings in a case of right forefoot tumoral calcinosis observed in a sixteen-year-old girl and describe the surgical treatment and pathology results. Based on this case and a review of the literature, we discuss the different pathogenic hypotheses as well as the appropriate diagnostic and therapeutic approach.