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Article
June 1958

The de Toni-Fanconi Syndrome with Cystinosis: Clinical and Metabolic Study of Two Cases in a Family and a Critical Review on the Nature of the Syndrome

Author Affiliations

Minneapolis
From the Department of Pediatrics and the Pediatric Research Laboratories of the Variety Club Heart Hospital, University of Minnesota Medical School. American Legion Memorial Heart Research Professor of Pediatrics (Dr. Good).

AMA Am J Dis Child. 1958;95(6):653-688. doi:10.1001/archpedi.1958.02060050657011
Abstract

The de Toni-Fanconi syndrome* is a clinical constellation characterized by resistant rickets, acidosis, glycosuria, hyperamino-aciduria, and organic aciduria. This syndrome belongs to a group of diseases based on abnormalities in renal tubular function. The renal abnormality in patients with the Fanconi syndrome consists of a deficient tubular reabsorption of phosphorus, amino acids and glucose along with a deficiency in the tubular mechanism for reabsorbing base without acid. In a number of children having clinical evidence of the Fanconi syndrome, postmortem histological studies have revealed deposits of cystine crystals scattered throughout various organs and tissues of the body, particularly in the reticuloendothelial system. In recent years an increasing number of instances have been reported in which cystinosis has been detected ante mortem by examination of bone marrow aspirates or by a slit-lamp examination of the cornea of the eye. In Table 1 are tabulated a number of cases1-55 which have

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