CASES of cutaneous calcinosis have been described in the literature often enough so that they can by no means be considered rare. However, calcinosis in a newborn infant has been seen on relatively few occasions. Accordingly, our recent observations concerning an infant whose illness began at the age of 2 weeks seemed worthy of publication. Before presenting the report of our case, we shall summarize the important features of the disease as they have been recorded in the literature.
CLASSIFICATION
Maloney and Bloom1 divided calcinosis into local and general types, the former being a purely local disease denoting calcification in tumors, cysts, and hematomas, and the latter resulting from a widespread disturbance within the body. The etiologic classification presented by Peters and co-workers2 divided the cases into four categories: (1) those in which the calcification results from known disturbances of calcium or phosphorus metabolism; (2) those in