Abstract

Summary— Intestinal suction biopsies were obtaineid in 15 infants and children with cutaneous colo-ureterostomies. The patients were subdivided into groups according to the length of time the conduit had been established, i.e. less than 5 years, 5 to 10 years, 10 to 15 years and over 15 years. The histological changes found were chronic inflammation with a dense infiltration of plasma cells and eosinophils. The changes were progressive and correlated with the length of time the conduit had been established. As persistent chronic inflammation is a precursor of malignancy, it seems likely that there is a risk of malignant change in these conduits. Regular follow-up of such patients is recommended and should include flexible fibreoptic endoscopy of the conduit.

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