Infundibular stenosis often results in hydrocalix and caliceal diverticulum and stone formation. If not corrected, stenosis will lead to deterioration of the renal parenchyma. Percutaneous infundibulotomies through a nephrostomy tract were successful in 14 patients. Direct puncture into the involved calix provides the best access for stone removal and incision or dilatation of the infundibular stenosis.
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Eshghi et al. (1987) studied this question.
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