Idiopathic tumoral calcinosis of the left thigh: a case report

Abstract Idiopathic tumoral calcinosis is a very rare benign condition characterized by pathological deposition of calcium phosphate crystals into the soft tissues, particularly into the peri-articular regions. This case report narrates the first reported case of idiopathic tumoral calcinosis in Sudan. A 38-year-old Sudanese female from Gadarif presented with a history of progressive enlargement of the left thigh swelling over a period of 1 year, which was painless. Clinical examination revealed a firm and well-circumscribed mass without overlying skin changes. Imaging revealed calcification with a characteristic “chicken wire” pattern in X-rays, and histopathology confirmed lobulated calcium deposits surrounded by fibrous tissue and foreign body giant cell reactions without malignancy. The patient underwent complete surgical excision of the mass under spinal anesthesia, and her recovery was uneventful. This case highlights the need for recognition of idiopathic tumoral calcinosis in the differential diagnosis of soft tissue masses, especially in the region where these are underreported.