The deposition of calcium in the skin, subcutaneous tissue, muscles and visceral organs is known as calcinosis. This condition commonly occurs in the skin, where it is known as calcinosis cutis or cutaneous calcification.

Where do you get calcinosis?

The areas most commonly affected in systemic sclerosis are the forearms, elbows, fingers, and knees. Calcification occurs in elbows and knees and areas of previous inflammatory lesions in dermatomyositis. The extremities, buttocks, underneath lupus lesions, and periarticular areas are affected in lupus erythematosus.

What does calcinosis feel like?

Calcinosis. Calcinosis is a collection of insoluble calcium salts within or beneath the skin, that feel like hard, chalky lumps. It often occurs in people with systemic sclerosis, especially with the limited type. Calcinosis tends to occur over pressure points, for example at the fingertips.