Unilateral hydronephrosis
Alternative names:
hydronephrosis
Definition:
Distention of the kidney pelvis and calyces of a single kidney (see also bilateral hydronephrosis).
Causes, incidence, and risk factors:
Hydronephrosis develops when the kidney pelvis and calyces become distended because urine is unable to drain into the bladder. Hydronephrosis is not a separate disease, but a physical phenomenon that occurs with many diseases. Symptoms, treatment, and prognosis are those of the associated diseases.
Disorders associated with unilateral hydronephrosis include: Unilateral hydronephrosis of varying degrees is discovered in approximately 1 out of 100 people.
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