A syndrome occurring in infants and characterized clinically by anorexia, vomiting, constipation, hypotonia, hypertension, characteristic facies, and severe mental-motor retardation, and by the laboratory findings of hypercalcemia, azotemia and impaired renal function has recently been described by British and Swiss workers. The disease apparently occurs in two forms, referred to as mild and severe. The literature concerning the severe form has been reviewed and an additional case reported. Hypersensitivity to vitamin D with excessive calcium absorption has been demonstrated in the mild form of this syndrome and has also been proposed as the metabolic abnormality responsible for the pathologic features of the severe form of the disease.
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