Idiopathic calcinosis cutis in the right axilla of a female: a case report and review of the literature

Idiopathic calcinosis cutis is a rare condition characterized by calcium salt deposition in the skin without underlying systemic disease. It presents significant diagnostic challenges, particularly when it occurs outside of typical associations such as connective tissue diseases. A 30-year-old Pakistani female with no systemic disease presented with an 8-year history of a progressively enlarging, painful lesion in the right axilla. The lesion, initially a small, painless nodule, had grown to 12×12 cm with hard, tender areas and chalky white deposits. Diagnostic imaging and biopsy confirmed idiopathic calcinosis cutis. Treatment involved en-bloc excision and split-thickness skin grafting. The patient had no recurrence at the 6-month follow-up. This case underscores the rarity of idiopathic calcinosis cutis in the axilla without systemic disease and highlights the need for accurate diagnosis and tailored management of atypical calcified skin lesions.