what does a complex cyst on the kidney mean?
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Kidney cysts are fluid filled sacs that can form on the outside or inside of a kidney. Termed 'simple' cysts, they are benign and generally cause little to no trouble. More complicated cysts (complex kidney cysts or complex renal cysts) can interfere with kidney function, or create other complications.
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In most cases, simple kidney cysts do not cause symptoms and usually do not require treatment. However, in some cases simple kidney cysts can grow large enough and cause a dull pain in a person's back, side or upper abdomen. These cysts can also get infected, causing pain, fever and tenderness.
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['family history of RCC.', 'dialysis treatment.', 'hypertension.', 'obesity.', 'smoking cigarettes.', 'polycystic kidney disease (an inherited disorder that causes cysts to form in the kidneys)', 'the genetic condition Von Hippel-Lindau disease (characterized by cysts and tumors in various organs)']
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Hematuria is more common in an individual with large kidneys and high blood pressure. It is thought that the rupture of cysts or of the small blood vessels around cysts is the cause. Other causes could include kidney or bladder infection and kidney stones.
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However, there are a few key differences between the two. A cyst is a small sac filled with air, fluid, or other material. A tumor refers to any unusual area of extra tissue. Both cysts and tumors can appear in your skin, tissue, organs, and bones.
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Abstract. Some renal masses have higher attenuation than the surrounding renal parenchyma at computed tomography (CT). Their hyperattenuation is usually the result of proteinaceous fluid or densely packed cells. Most hyperattenuating renal masses are benign hemorrhagic or proteinaceous cysts.
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A cyst is a sac-like pocket of membranous tissue that contains fluid, air, or other substances. Cysts can grow almost anywhere in your body or under your skin. There are many different types of cysts. Most cysts are benign, or noncancerous.
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Description. Polycystic kidney disease is a disorder that affects the kidneys and other organs. Clusters of fluid-filled sacs, called cysts, develop in the kidneys and interfere with their ability to filter waste products from the blood.
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A cyst is a small sac filled with air, fluid, or other material. A tumor refers to any unusual area of extra tissue. Both cysts and tumors can appear in your skin, tissue, organs, and bones.
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Simple kidney cysts differ from the ones that develop when a person has the genetic condition polycystic kidney disease (PKD). Simple cysts do not enlarge the kidneys, change their structure or reduce their function, as is the case in people with PKD.
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Polycystic kidney disease (PKD) is an inherited disorder in which clusters of cysts develop primarily within your kidneys, causing your kidneys to enlarge and lose function over time. Cysts are noncancerous round sacs containing fluid. The cysts vary in size, and they can grow very large.
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A brain cyst or cystic brain lesion is a fluid-filled sac in the brain. They can be benign (not cancer) or malignant (cancer). Benign means that the growth does not spread to other parts of the body. A cyst may contain blood, pus, or other material.
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Background. Cystic renal cell carcinoma (CRCC) is a special type of renal cell carcinoma. It is relatively rare and involves fluid-filled masses. The classification of cystic renal disease is based on the Bosniak classification system (Table 1) [1,2].
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It is possible to have one or more cysts in one or both kidneys. The exact cause of simple kidney cysts is not known but they tend to be more common as people age. Simple kidney cysts rarely cause problems and are different from polycystic kidney disease, which tends to run in families and can be more serious.
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A cyst is an abnormal mass in the body that's filled with fluid or infected matter. It is sometimes to blame for an abdominal mass. Cysts that commonly cause abdominal masses include ovarian cysts, which are cysts that form in or around the ovaries.
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There are two types of cysts: simple cysts and polycystic kidney disease. Simple cysts are individual cysts that form on the kidneys. They have thin walls and contain a water-like fluid. Simple cysts don't damage the kidneys or affect their function.
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The terms "tumor," "mass," or "lesion" are used to describe an abnormal growth in the kidney. Tumors can be benign (non-cancerous) or malignant (cancerous). A fluid-filled sac, called a cyst, is the most common growth found in a kidney. Cysts are mostly not cancerous.