What exactly is a renal cyst?

Fluid filled cavity. Kidney cysts are formed by blockage of a minute kidney tubule called a nephron. We have about a million nephrons in each normal kidney. Simple kidney cysts are very common and present in about one third of people and are benign. Polycystic kidneys have cysts throughout the organ, are usually present on both sides and are an inherited congenital condition. Rare complex cysts can be cancerous.

Related Questions

What does simple renal cyst means?

Benign. Simple renal cyst is like a thin balloon filled with clear fluid. Totally harmless if not causing pain. Very common. Not to worry. If it is a "complex cyst" it needs to be followed. Read more...
Simple cyst. 'Simple' cyst means thin wall and clear fluid inside. These are very common. They do not turn into cancer. There is no treatment necessary unless they are very large and create symptoms due to their size. Read more...

What is small renal cyst, bilateral?

Cysts. Renal cysts are small collections of fluid in the kidneys. They occur quite frequently in people and are often only discovered when doing a routine exam for another reason. Most renal cysts do not have any medical significance but it would be reasonable to discuss with doctor. Read more...

Can you tell me about renal cyst and related problems?

A simple cyst is OK! A simple (clear or see through) renal cyst is not a significant event. However, a complex cyst, (the one that appears to house tissue or clotted blood inside) is important to follow closely because it may be cancerous. However, if cysts are too numerous and on both sides, like in the case of polycystic kidney disease, the squished renal tissue over the years may lead to kidney failure. Read more...
Renal Cyst. Solitary kidney cysts are generally harmless. A radiologist and urologist can determine if a cyst is complex or irregular. These can harbor tumor. Multiple cysts indicate a genetic abnormality, such as polycystic kidney. Solitary cysts rarely bleed and rarely get infected and rarely rupture. Polycystic kidney cysts can bleed and can get infected easily. MRI can diagnose cyst nature. Read more...

What is difference from renal cyst and compartmentalized renal cyst?

Septation. Renal cysts can be simple (one cavity and one capsule) or septated or having compartments. Those are complex cysts and some of them may have a higher chance of being or turning malignant than simple cysts. Those complex cysts need to be monitored and may need to be biopsied. Read more...

What does a renal cyst mean? I was told I have a renal cyst but not to worry. Is this common?

A . A renal cyst is a fluid collection on the kidney. Most renal cysts and benign, can be monitored and do not require intervention. About 25% of people over 50 can have a renal cyst that causes no problems. Some renal cysts can be malignant (cancerous) and require surgical removal, a procedure called a nephrectomy. Read more...
Not usually. Simple kidney cysts are more common as people age.Estimated 25 percent of people 40 years of age and 50 percent of people 50 years of age have simple kidney cysts.Small percentage of neonates and young children with simple renal cysts.Sometimes relationship between simple kidney cysts and high blood pressure.Cysts causing symptoms or blocking urine or blood flow need sclerotic rx or surgery. Read more...

Is an average of 3mm per year growth in size of a painful renal cyst in 35 y/o female within the normal range of growth rate?

What is the size? Kidney cysts average size 2-3 cm ( an inch is 2.54 cm)). They should not cause pain. It the total size gets to 8-10 cm and larger you should expect feeling pressure and heaviness. Simple cyst is a bag of fluid, very common, 50% of people over age of 50, they have kidney cyst. Read more...

Can septated renal cyst become cancerous?

Unlikely. But you should keep track of it with Ultrasound once or twice about a year apart to check for any change in size...just to be sure. Read more...