Parapelvic Cyst

The Truth about a Parapelvic Cyst

A cyst is a closed little pouch that can be filled with fluid, and a parapelvic cyst is a cyst which is in the kidney. Cysts can occur anywhere on the human body. The parapelvic cyst is a simple cyst that forms in the kidney and it’s different than polycystic kidney disease, another type of kidney cyst.

Simple kidney cysts occur more and more as we age. Statistics show that the chances are 50% of you will have at least one kidney cyst by the time you reach the age of seventy. No one knows the exact reason a parapelvic cyst forms, but they are always in the sinus region of the kidney. Sometimes a parapelvic cyst is known as a renal sinus cyst, because of its location.

Your two kidneys are organs in the upper portion of the abdomen nearer the back. Many people confuse kidney pain and lower back pain because of the close proximity of the two regions. Kidney problems can cause lower back pain but back pain may also have nothing at all to do with your kidneys. The kidneys’ job is to filter waste out of the blood, forming urine. Some kinds of cysts can form in locations where they can cause major problems, including impairing the function of the kidney, causing it to fail to do its job.

Even a simple renal cyst, such as a parapelvic cyst, could cause pain, an obstruction, infection, or the formation of kidney stones. Many of these cysts are left alone, but there are some circumstances like these which will lead to surgery. It will most likely be suggested to you that you have surgery if it is a particularly large cyst, you have acute lower back pain, high blood pressure, hematuria (blood in the urine), or other types of complications.

Diagnosis will be made after tests are taken. These may include a CT (computerized tomography), MRI (magnetic resonance imaging) or an ultrasound. Sometimes renal cysts can be confused with hydronephrosis, which is a condition that occurs when there is an obstruction in the kidney that causes urine to back up and place pressure on the kidney. The urine forms a pool which is not unlike the liquid in a cyst. The kidney is often distended with this condition and it can be distended with a very large cyst as well.

If you have multiple parapelvic cysts, they are more apt to be confused with hydronephrosis. And, to make it even more confusing, cysts can cause hydronephrosis in rare cases by blocking the urinary tract. Many research studies are completed on cysts in the kidney. In one clinical study of twenty-three patients with a parapelvic cyst of the kidney, 61% of the patients experienced pain or discomfort in the lower (lumbar) region of the back. 17% of the patients suffered from hematuria and hypertension.

Fifteen patients of the twenty-three in the study received surgery, with two having nephrectomies, or removal of the kidney. Eight of the patients with a parapelvic cyst were treated medically for having a small cyst but had no complications at all. The most effective diagnostic methods used were a CT scan and ultrasonography.

Fifty-percent of the people over fifty years of age will experience a parapelvic cyst at some point in their lifetime, although there will be no serious consequences. In fact, most of these types of cysts are found incidentally while another disease or condition is being treated. Carcinomas, or cancerous masses are very easily differentiated from simple renal cysts by the method used in diagnosis, whether it be an ultrasound, CT or MRI.