what is the difference between a kidney cyst and a tumor?
319721
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.
1171460
Some renal masses are benign (not cancerous) and some are malignant (cancerous). One in four renal masses are benign. Smaller masses are more likely to be benign. Larger masses are more likely to be cancerous.
781468
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.
511487
A renal mass, or tumor, is an abnormal growth in the kidney. Some renal masses are benign (not cancerous) and some are malignant (cancerous). One in four renal masses are benign. Smaller masses are more likely to be benign.
1031050
Cysts vs. tumors A cyst is a sac of tissue that is filled with another substance, such as air or fluid. Tumors are solid masses of tissue. Cysts can form anywhere on the body, including on the bones and soft tissues. Most cysts are noncancerous, although there are some exceptions.
1388869
Most people's first thought is cancer when they notice a new lump. While certain types of cancer can cause cysts, cysts themselves are almost always benign.
739476
What is the difference between fibroids and cysts? In general terms, fibroids consist of dense tissue and occur only in the uterus, while cysts form on the ovaries and are fluid-filled.
203876
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. Rarely, to shrink the cyst, your doctor inserts a long, thin needle through your skin and through the wall of the kidney cyst.
1272435
Sometimes this substance may come out of a hole in the cyst. When this happens, it is called a rupture. If your cyst ruptures, it will become inflamed (red and swollen) and may become infected. Dermal cysts are usually benign (not cancer), but may have cancer in them.
1416662
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.
145940
Renal Cysts. Renal cysts are sacs of fluid that form in the kidneys. They are usually characterized as "simple" cysts, meaning they have a thin wall and contain water-like fluid. Renal cysts become fairly common as people age and usually do not cause symptoms or harm.
1258207
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.
1472078
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.
111659
Cysts can be tiny or very large, and most cysts are benign (not cancerous). There are hundreds of different types of cysts that form for many different reasons, such as infections or blockages in ducts. Tumors, also known as neoplasms, are generally solid masses of tissue that form from abnormal new growth of cells.
1201380
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.
477057
Cysts. 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.
570404
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.