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Doctor insights on: Bilateral Renal Cysts

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If person has "bilateral renal cysts", does that mean it's cancer?

If person has "bilateral renal cysts", does that mean it's cancer?

No.: "bilateral renal cysts" means that both kidneys (right and left) contain cysts. While some kidney cancers may be cystic, most renal cysts are benign. It would be good to ask the doctor who ordered the imaging study that found the renal cysts what he/she thinks of these cysts and the likelihood that they might be cancer. Every case is unique. Hope that this helps.

Cyst (Definition)

A cyst is a structure or mass that consists of a cellular lined sac. It is typically filled with fluid but may be filled with solid material. It can be congenital, traumatic, or acquired. They may develop nearly anywhere in the body and usually require complete excision for eradication or they are likely to recur. Fluid filled sacs that are not cellular lined ...Read more


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Is it normal for 35 y/o non-alcoholic female w/o family history of PKD to develop multiple painful bilateral renal cysts, high urine output & high bp?

Is it normal for 35 y/o non-alcoholic female w/o family history of PKD to develop multiple painful bilateral renal cysts, high urine output & high bp?

Isolated PKD: PKD is autosomal dominant. One PKD allele is all that is needed to express PKD. Expression is over 90%. What you report is not normal, nor usual. Over 90% of expressed, affected persons have an affected parent. Yet, old data indicate that ~10% of affected persons do not have a parent with expressed PKD. Yet new data reveal that PKD gene mutations do exist in a parent without expression.

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Is it common for a 36y pt to have multiple bilateral renal cysts, hepatic cysts, splenic cyst, and adrenal cyst all at once? Shall I worry about mets?

Is it common for a 36y pt to have multiple bilateral renal cysts, hepatic cysts, splenic cyst, and adrenal cyst all at once? Shall I worry about mets?

Something else: Do you have a diagnosis? Family history of polycystic kidney disease? Radiologist is probably best dr to talk to as will correlate your history with specific cyst patters seen on imaging. Will also be able to recommended additional diagnostic tests & use intervention techniques to diagnose, drain & treat as needed. Apckd > hydatid cysts can do this. Confirm its adrenal cyst vs adenoma, .

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Had CT done showed small bilateral renal cysts with hydronephrosis. Have been cancer free since 6/20/13. Should I be concerned?

Had CT done showed small bilateral renal cysts with hydronephrosis. Have been cancer free since 6/20/13. Should I be concerned?

Good you are: Cancer free. Don't worry about renal cysts, the concern is the cause of hydronephrosis, speak to your doctor. What is causing (based on info, taking tamoxifen you have breast ca?).

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I've had multiple bilateral simple renal cysts for a few years. Recent ultrasound shows internal echoes in one of them. Can simple cyst turn complex?

I've had multiple bilateral simple renal cysts for a few years. Recent ultrasound shows internal echoes in one of them. Can simple cyst turn complex?

Yes: A simple cyst can become more complex if bleeding or infection occurs within it. Rarely, intracystic malignancy can occur. If it is just some low level echoes, it is probably nothing to worry about. If there are multiple renal cysts, it is not uncommon for one or two to have some internal echoes. If there are no suspicious features, sometimes they are ignored, followed with serial US, or f/uCT

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I have pelvic ultrasound yesterday and found out tiny non obstructing nephrolithiasis, bilateral; small renal cyst measuring 9mm, left. Should I worry?

I have pelvic ultrasound yesterday and found out tiny non obstructing nephrolithiasis, bilateral; small renal cyst measuring 9mm, left. Should I worry?

No: Small kidney cysts are pretty common. And small non obstructing stones should not cause much issue especially if you have a history of prior stones. If concerned, check with your urologist or physician who ordered the tests.

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What is small renal cyst, bilateral?

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.

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I have bilateral renal cortical cysts, Bozniak II. What is my prognosis?

I have bilateral renal cortical cysts, Bozniak II. What is my prognosis?

Here are some...: The prognosis is good - very good although all medical care is based on indirect evidence from continual collection & analysis of prior experience. From now on, to fit your clinical scenario, it is advisable to have kidney US annually for 2-3 yrs, and after that, once every 2-3 yrs in conjunction with blood renal function test annually to monitor renal function as for? Adult polycystic diseases...

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What is significance of small bilateral renal cortical cysts if renal function tests are normal?

What is significance of small bilateral renal cortical cysts if renal function tests are normal?

Not much, but: Need a follow up ultrasound in a few years to see if increasing suggestive of polycystic kidney disease (pkd). If this is the case there is a chance to lose kidney function over long years. It is not a cancer. But increasing cysts number and size can overtake kidneys. Chances are, none of that will happen to you. But, better safe than sorry. Pkd is a benign and slow condition but may cause failure.

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My father was diagnosed bilateral renal cortical cysts. He is 73yrs of age. He has BP. Whether its a problem for him?

My father was diagnosed bilateral renal cortical cysts. He is 73yrs of age. He has BP. Whether its a problem for him?

Renal cysts: Generally these can be observed unless they get infected. He should be seen by a kidney doctor (nephrologist.

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M58, CT scan says "bilateral renal cortical cyst noted. The largest cyst at the upper pole of the left kidney measures 3.8x5 cm." Is this significiant?

M58, CT scan says "bilateral renal cortical cyst noted. The largest cyst at the upper pole of the left kidney measures 3.8x5 cm." Is this significiant?

Probably not: The majority of people develop a few kidney cysts, especially by the time we reach your age. They are usually benign. A kidney ultrasound would better characterize if it is a simple cyst (benign) or not, especially if there was no IV contrast in the CT scan. It should be noted how many cysts were found, which was not apparent in your description, so I'm only assuming one on each kidney.

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In my kub ultrasound, the result is renal parenchymal disease, bilaterally, and renal cortical cyst, bozniak ii. My creatinine is ok. Will I die now?

In my kub ultrasound, the result is renal parenchymal disease, bilaterally, and renal cortical cyst, bozniak ii. My creatinine is ok. Will I die now?

Not from kidney dz: The medical parenchymal disease sounds like scarring of kidney. Make sure your blood pressure is perfect and you are not taking ibuprofen. The renal cyst is a fluid filled sack in the kidney. They are common. Bosniak 2 is a cyst with a septation or calcium deposit. A 2a cyst is begn and does not need follow up. A 2b cyst needs follow up because a small percentage can turn into renal cancers.

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About bilateral multiple renal stones the largest being 12mm and 7mm on each and a renal cyst 15mm x 13mm, what is the best treatment.

About bilateral multiple renal stones the largest being 12mm and 7mm on each and a renal cyst 15mm x 13mm, what is the best treatment.

Renal stone: Most renal cyst or insignificant and required no treatment. The nonobstructing renal stones are best treated with eswl. See a urologist to discuss treatment options.

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What exactly is a renal cyst?

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.

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What does simple renal cyst means?

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.

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Can you tell me about renal cyst and related problems?

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.

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What is difference from renal cyst and compartmentalized renal cyst?

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.