TABLE 1

Common terms used to describe calcification

Soft tissue calcification
Dystrophic calcification: occurring in damaged or degenerated tissue in the setting of normal metabolic factors
Metastatic calcification: occurring in otherwise normal tissue, secondary to deranged metabolic factors, as in hypercalcemia
Calciphylaxis (calcific uremic arteriopathy): ischemic skin lesions characterized by calcium deposition and thrombosis in the dermis and subcutaneous adipose tissue, most commonly associated with advanced kidney disease
Calcinosis cutis universalis: diffuse involvement of subcutaneous and fibrous structures, most commonly in association with autoimmune disorders
Tumoral calcinosis: massive deposition of calcium-phosphorus crystals in periarticular areas
Calcinosis circumscripta: localized or isolated calcification; term sometimes used if calciphylaxis involvement is limited to an extremity
Vascular calcification
Atherosclerotic (intimal) calcification: inflammatory vaso-occlusive calcification of intima as a result of endothelial dysfunction
Monckeberg arterial calcification: medial calcification deposition in small and medium arteries without luminal narrowing
Infantile calcification: extensive calcification of medium and large arteries due to ENPP1 gene mutation