Category Archives: Kidney Cysts

Have had annual MRI’s of abdomen. Have found kidney cysts that have been stable. However, this time it shows, kidneys: Interval increase in size and complexity of the left lower pole cyst with new, thin septations and persistent, layering T1 hyperintense, T2 hypointense debris, measuring 3.8 x 3.3 cm. What does this mean?

The question that you ask is a urological problem. I am a nephrologist and have no surgical expertise. A urologist is a surgeon and deals with complex cysts of the kidney. You will need to consult with your physician about … Continue reading

Posted in Ask the Doctor, Blood/Urine Testing For Kidney Disease, Kidney Cysts, Kidney-Related Health Questions, Nephrologist, Urological Issues

I am 75 years old, 20 lbs over weight for being 6 ft. tall. Ten days ago I passed a LOT of blood, with some large blood clots. Blood passing stopped in about six hours, and I had no pain at all. I have the mega good fortune to be in Reno, and the VA hospital here is wonderful. Had a cat scan a few days ago, and doctor’s review says: “Bilateral kidney subcentimeter low-attenuation foci are to small to diagnosis, but statistically represent cysts. Right kidney larger fluid attenuation non enhancing simple cysts. Right kidney upper pole non obstructing nephrolithiasis.” Cysts are reported in several places on the net as not a huge deal, unless they get huge? I go back to see the urologist in a couple weeks. Will put a camera up the tube to look around; worthwhile, or not?? THANKS MUCH MUCH FOR YOUR service to us all!!!!!

The problem that you describe is a urological problem. I am a nephrologist and have no surgical expertise. A urologist is a surgeon and deals with bleeding of the lower urinary tract. I suggest that you continue to consult with … Continue reading

Posted in Ask the Doctor, Blood/Urine Testing For Kidney Disease, Kidney Cysts, Kidney-Related Health Questions, Nephrologist, Urological Issues

My 20 year old son went for a CT scan due to left quadrant pain. The Dr thought he was constipated. Barium and IV injection done during CT. Came back not constipated but incidentally the CT found enlarged bilateral kidneys and a 15 mm “cyst” on the left kidney. My mom, about 5 years ago, had her left kidney removed due to a tumor (and I am not sure of the pathology of that right now.) Since there is history and my son is only 20, should we consult with a urologist as the Dr doesn’t appear concerned but I am. The other concern I have is he has been having pain and upper back pain but did not put 2 and 2 together until after these results came back today. He works a very strenuous job and thought he had just pulled some muscles but with the pain, is this more concerning? Thank you for your time.

The problem that you identify is a urological problem. I am a nephrologist and do not have any surgical expertise. Cysts should be evaluated by ultrasound and computerized tomography (CT) scanning. Many times these can be determined to be benign … Continue reading

Posted in Ask the Doctor, Blood/Urine Testing For Kidney Disease, Kidney Cysts, Kidney-Related Health Questions, Nephrologist, Urological Issues

My blood work showed eGFR >60, AGAP 15, Albumin/Globulin 2.1, Creatinine .6, BUN/Creatinine 43. A CT scan showed 3.4 x 3.5 cm cyst within the inter-polar region of right kidney. Fluid density cysts closely abutting the pelvis and infundibula likely left renal parapelvic cysts. No hydronephrosis. No one told me any follow up is needed, do you agree??

If these cysts were judged as simple cysts or Bosniak Category I cysts, then no further testing is required. Further testing is sometimes necessary in the form of an ultrasound examination of these cysts. I suggest that you discuss this … Continue reading

Posted in Ask the Doctor, Blood/Urine Testing For Kidney Disease, Kidney Cysts, Kidney-Related Health Questions

Dear Dr., My dad is 63. Here is his kidney CT Scan reports done a year ago. Both kidneys normal in size and position. RK is relatively smaller in size 7.8cm, LK measures 8.85 cm, Multiple fluid attenuation unilocular cysts seen – largest exophytic cyst at upper pole of right kidney measuring 84x75mm, another partly exophytic cyst at mid-lower pole measuring 44x29mm and 25x23mm at lower pole of left kidney. Few faint hyperdense foci at lower pole of right kidney measuring, larger upper pole radiodense calculus in left kidney measuring 21x16mm with CT density 550HU with focal upper pole caliectasis. (In Ultrasound done a few days ago now this shows as Multiple Ecogenic foci together approx 28mm in upper calys in left kidney) Multiple small upper and mid pole calyceal calculi in left kidney measuring 3-4mm with CT density 300-500HU.

I am not able to make a specific diagnosis based on the information that you present. The report describes both cysts and stones present in both kidneys. I cannot tell if this is genetic cystic disease or acquired cystic kidney … Continue reading

Posted in Ask the Doctor, Blood/Urine Testing For Kidney Disease, Chronic Kidney Disease, Kidney Cysts, Kidney Stones, Kidney-Related Health Questions, Nephrologist

I had a CT scan and ultrasound when I was in the hospital for diverticulitis. The CT scan said I had a large renal cyst on my right kidney (6.6 cm by 6.5 cm). It also said I had many renal cysts on both kidneys. Should I go to a kidney doctor to get my kidneys checked? My blood lab results say my kidney function is okay.

Simple kidney cysts are very common and if these are simple cysts, they do not require any significant follow up. I suggest that you review these findings with your primary care physician (PCP). If there is any concern, then a … Continue reading

Posted in Ask the Doctor, Blood/Urine Testing For Kidney Disease, Kidney Cysts, Kidney-Related Health Questions, Nephrologist

Re: 47 yo, Stage 3b CKD, GFR 34 Cr 198. Thank you for your response to my questions regarding “ACKD”, my apologies for not specifying this acronym; is in reference to Acquired Cystic Kidney Disease. 3 yrs ago I only had a few small cysts during a stone search CT and now they’ve taken over the entire interior of both organs. I’m looking for links, studies, or journals referencing the effects of Acquired Cystic Disease in pre-dialysis cases. I understand it’s caused by the CKD rather than dialysis, and can occur before treatments begin. I am trying to research in what ways will having both kidneys already completely full of aqcuired cysts, as well as the usual stones and calcium pools may affect my treatment options and outcomes. As most cases don’t advance to this level until several years into treatment. I’m not finding any information regarding cases of fully developed ACKD in pre-treatment patients. Thank you for the links and information regarding cardiovascular issues related to CKD. My nephrologist recommendation to see a neurologist and cardiologist are well explained in the links you provided. Thank you for spending your time with this blog helping CKD patients this is a wonder resource and help to our community.

Acquired cystic kidney disease is generally a benign disease. It is caused by the chronic kidney disease (CKD) and as people age, the cysts become more numerous. It is very common. About 40% of the population will show cysts in … Continue reading

Posted in Ask the Doctor, Blood/Urine Testing For Kidney Disease, Chronic Kidney Disease, Kidney Cysts, Kidney-Related Health Questions

Hi Doctor, In Oct/18, I had abdominal ultrasound and my right kidney has an upper cortical echogenic nodule measuring 0.9 x 0.8 cm. I had another US on May 1st of this year and it grew to 1.8 x 1.7 cm. I was told by my doctor I need another US in 6 months. Do I have to be concerned about the increased of the cyst size?

A cyst and a nodule are not the same thing. A cyst is usually round and filled with fluid. A nodule is solid tissue. An enlarging nodule should be carefully followed and if it continues to grow, should be evaluated … Continue reading

Posted in Ask the Doctor, Blood/Urine Testing For Kidney Disease, Kidney Cysts, Kidney-Related Health Questions, Urological Issues

What is meant by left kidney small in size measuring 1.6* 1 cm with few small cyst (4 in no) of size 2-4 mm for a 4 month old baby? Is it dangerous?

I am an adult nephrologist and I do not have expertise regarding infants and children. You should discuss this result with your pediatrician or a pediatric Urologist.

Posted in Ask the Doctor, Kidney Cysts, Kidney-Related Health Questions, Nephrologist, Pediatric Issues

I’ve had two renal ultrasounds done to rule out kidney problems related to high blood pressure. On both of those ultrasounds, a renal cyst was discovered on the left kidney. However, it doesn’t appear on KUB or on CT scan (both done to rule out obstruction from stones, which coincidentally also do not show up on any sort of x-ray.) What sort of cyst would appear on ultrasound and be measurable but not appear on any other imaging studies? Someone suggested endometriosis, but my nephrologist has shot that theory down. I do have a history of adhesions. Another theory was artifact, but would an artifact be measurable and have characteristics? Thank you!

A plain Kidney Ureter Bladder (KUB) x-ray film and Computerized Tomography (CT) scan of kidneys are not very good at visualizing cysts. In fact, a KUB can only pick up very large cysts and then not very well. The ultrasound … Continue reading

Posted in Ask the Doctor, Blood/Urine Testing For Kidney Disease, Kidney Cysts, Kidney-Related Health Questions