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Ureterocele - Overview

Definition of Ureterocele:

A ureterocele is swelling in one of the tubes (ureters) that carry urine from the kidney to the bladder. The swelling can block urine flow.

A ureterocele is a birth defect.

Causes, incidence, and risk factors:

A ureterocele occurs in the lower part of the ureter, where the tube enters the bladder. The swelling prevents urine from moving freely into the bladder. The urine collects in the ureter and stretches its walls, blowing it up like a water balloon.

Ureteroceles occur in about 1 in 500 to 1 in 4,000 people. Caucasians are most likely to be affected. Ureteroceles are equally common in left- and right-side ureters.

Female urinary tract

Male urinary tract

Ureterocele

Reviewed last on: 9/7/2008
David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and Louis S. Liou, MD, PhD, Assistant Professor of Urology, Department of Surgery, Boston University School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

References

Schlussel RN, Retik AB. Ectopic Ureter, Ureterocele, and Other Anomalies of the Ureter. In: Wein AJ, ed. Campbell-Walsh Urology. 9th ed. Philadelphia, Pa: Saunders Elsevier;2007: chap 116.

Guay-Woodford LM. Hereditary Nephropathies and Abnormalities of the Urinary Tract. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia Pa: Saunders Elsevier; 2007: chap 129.

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