At necropsy of a 43-year-old woman’s corpse, osteomalacia was revealed (softening of the bones). Microscopically, in the mucous membrane of the stomach, in the myocardium of the left ventricle and in the kidneys, the presence of intense purple-colored deposits along the small vessels was detected. The reaction is positive. The process underlying the appearance of deposits in the vascular wall

+metastatic calcification