Unilateral Hydronephrosis
Alternate Names : Hydronephrosis
Definition
Unilateral hydronephrosis occurs when a single kidney becomes distended, or swollen, due to a backup of urine. (When both kidneys are involved, the condition is called bilateral hydronephrosis.)
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Overview, Causes, & Risk Factors
Hydronephrosis is a condition that occurs with a disease and is not a disease itself. The symptoms, treatment, and prognosis for unilateral hydronephrosis are those of the associated disorder.
Conditions that are often associated with unilateral hydronephrosis include the following:
Unilateral hydronephrosis occurs in approximately 1 in 100 people.
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