Megacalycosis: report of two cases

Congenital megacalycosis is a rare renal disorder consisting of caliceal dilatation without evidence of renal pelvic or ureteral obstruction. Since its first description in 1963, only a few cases have been reported. The defect is mostly unilateral, shows male predominance and does not disrupt the re...

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Published in:Pediatric nephrology (Berlin, West) West), 2005-06, Vol.20 (6), p.828-830
Main Authors: Kasap, Belde, Kavukçu, Salih, Soylu, Alper, Türkmen, Mehmet, Seçil, Mustafa
Format: Article
Language:English
Subjects:
Adolescent
Case studies
Congenital Abnormalities - diagnostic imaging
Diagnosis
Diagnosis, Differential
Humans
Hydronephrosis - complications
Hydronephrosis - diagnosis
Infant
Kidney Calices - abnormalities
Kidney diseases
Male
Radionuclide Imaging
Radiopharmaceuticals
Technetium Tc 99m Pentetate
Ultrasonography
Urinary Tract Infections - complications
Urinary Tract Infections - diagnosis
Urography
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Summary:Congenital megacalycosis is a rare renal disorder consisting of caliceal dilatation without evidence of renal pelvic or ureteral obstruction. Since its first description in 1963, only a few cases have been reported. The defect is mostly unilateral, shows male predominance and does not disrupt the renal functions. We report on two male patients with bilateral megacalycosis and different clinical presentations. The first case was diagnosed in adolescence during examination for a urinary tract infection and was followed-up uneventfully for nearly ten years. The second case was found to have megacalycosis during the assessment of antenatal hydronephrosis. We aimed to emphasize the importance of considering megacalycosis in the differential diagnosis of both antenatal hydronephrosis and other causes of caliceal dilatation to prevent unnecessary diagnostic and therapeutic interventions.
ISSN:0931-041X
1432-198X
DOI:10.1007/s00467-004-1809-1