Hydronephrosis

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Hydronephrosis
Synonyms
Pronounce N/A
Specialty N/A
Symptoms Flank pain, abdominal mass, nausea, vomiting, urinary tract infection
Complications Kidney failure, urinary tract infection, sepsis
Onset
Duration
Types Unilateral hydronephrosis, bilateral hydronephrosis
Causes Kidney stones, congenital blockage, blood clot, tumor
Risks
Diagnosis Ultrasound, CT scan, MRI
Differential diagnosis Pyelonephritis, renal cyst, polycystic kidney disease
Prevention
Treatment Surgery, ureteral stent, nephrostomy
Medication Pain management, antibiotics
Prognosis
Frequency
Deaths


Hydronephrosis from kidney stone
Bilateral hydronephrosis
Hydronephrosis
CT of peripelvic cysts with non-contrast and urography
Society for Fetal Urology (SFU) grading of hydronephrosis
Left hydronephrosis with pyelostent
Left hydronephrosis with pyelostent

Hydronephrosis is a condition characterized by the swelling of a kidney due to a build-up of urine. It happens when urine cannot drain out from the kidney to the bladder from a blockage or obstruction. Hydronephrosis can occur in one or both kidneys.

Causes[edit]

The primary cause of hydronephrosis is obstruction in the urinary system which prevents urine from draining properly. Obstructions can occur at any point in the urinary system, from the kidneys to the urethra. Some common causes include:

Symptoms[edit]

The symptoms of hydronephrosis depend on whether the condition is acute or chronic, the degree of obstruction, and whether it is on one side or both. In some cases, there may be no symptoms. When symptoms do occur, they may include:

Diagnosis[edit]

Hydronephrosis is usually diagnosed using imaging tests. These may include:

Treatment[edit]

Treatment for hydronephrosis focuses on removing the obstruction and allowing urine to flow through the urinary system. This may involve:

See also[edit]