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Solitary intestinal fibromatosis (SIF) is an unusual cause of neonatal intestinal obstruction. A fibromatosis located in the first part of the duodenum, close to the pylorus, was associated with a focus of heterotopic pancreas and mimicked congenital pyloric stenosis. It illustrates the difficulties encountered in the diagnosis and surgical management of this condition.
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Canioni et al. (1989) studied this question.
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