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Kidney Cyst

Duncan MacDonald     
Jakarta   12  December   2017      

    What is a Kidney Cyst?

   Kidney cysts  are round pouches of fluid that form on or in the kidneys. Kidney cysts can be associated with serious disorders that may impair kidney function. But more commonly, kidney cysts are a type called simple kidney cysts;   Kidney cysts non-cancerous cysts that rarely cause complications.

   It's not clear what causes simple kidney cysts. Typically, only one cyst occurs on the surface of a kidney, but multiple cysts can affect one or both kidneys. However, simple kidney cysts aren't the same as the cysts that form with polycystic kidney disease.

   Simple kidney cysts are often detected during an imaging test performed for another condition. Simple kidney cysts that don't cause signs or symptoms usually don't require treatment.

    Symptoms

   Simple kidney cysts typically don't cause signs or symptoms. If a simple kidney cyst grows large enough, symptoms may include:

  •      Dull pain in your back or side
  •      Fever
  •      Upper abdominal pain

    When to see a doctor

Make an appointment with your doctor if you have signs or symptoms of a kidney cyst.

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    Causes

It's not clear what causes simple kidney cysts. One theory suggests that kidney cysts develop when the surface layer of the kidney weakens and forms a pouch (diverticulum). The pouch then fills with fluid, detaches and develops into a cyst.

    Risk factors

The risk of having simple kidney cysts increases as you get older, though they can occur at any age. Simple kidney cysts are more common in men.

    Complications

Kidney cysts can occasionally lead to complications, including:

   •   An infected cyst.  A kidney cyst may become infected, causing fever and pain.

   •   A burst cyst.  A kidney cyst that bursts causes severe pain in your back or side.

   •   Urine obstruction.  A kidney cyst that obstructs the normal flow of urine may lead to swelling of the kidney (hydronephrosis).

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    Diagnosis

Tests and procedures used to diagnose simple kidney cysts include:

   •  Imaging tests. Imaging tests, such as an ultrasound, a computerized tomography (CT) scan and magnetic resonance imaging (MRI), are often used to investigate simple kidney cysts. Imaging tests can help your doctor determine whether a kidney mass is a cyst or a tumor.

   •  Kidney function tests. Testing a sample of your blood may reveal whether a kidney cyst is impairing your kidney function..

    Treatment

Treatment may not be necessary

If your simple kidney cyst causes no signs or symptoms and doesn't interfere with your kidney function, you may not need treatment. Instead, your doctor may recommend that you have an imaging test, such as ultrasound, periodically to see whether your kidney cyst has enlarged. If your kidney cyst changes and causes signs and symptoms, you may choose to have treatment at that time. Sometimes a simple kidney cyst goes away on its own.

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    Treatments for cysts that cause signs and symptoms

If your simple kidney cyst is causing signs and symptoms, your doctor may recommend treatment. Options include:

   •   Puncturing and draining the cyst, then filling it with alcohol. To shrink the cyst, your doctor inserts a long, thin needle through your skin and through the wall of the kidney cyst. Then the fluid is drained from the cyst. Your doctor may fill the cyst with an alcohol solution to prevent it from reforming

   •   Surgery to remove the cyst. A large or symptomatic cyst may require surgery to drain and remove it. To access the cyst, the surgeon makes several small incisions in your skin and inserts special tools and a small video camera. While watching a video monitor in the operating room, the surgeon guides the tools to the kidney and uses them to drain the fluid from the cyst. Then the walls of the cyst are cut or burned away.

Depending on the type of procedure your doctor recommends, treatment for your kidney cyst may require a brief hospital stay.

    What to expect from your doctor

Your doctor is likely to ask you a number of questions, such as:

  •      Do you have any symptoms?
  •      If so, how long have you experienced symptoms?
  •      Have your symptoms gotten worse over time?
  •      Do you have any blood in your urine?
  •      Have you had pain in your back or sides?
  •      Have you had a fever or chills?
  •      Do you have any other medical conditions?
  •      What medications, vitamins or supplements do you take?

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