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Doctor insights on: Kidney Ct Scan With Dye

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Dr. Andrew Seibert
1 doctor shared a insight

Computed Tomography (Definition)

Ct uses xrays taken an 360 degrees combined with a computer to see"inside" the body. The table moves as the xray tube and detectors spin around the patient 10 times a second or more! the image shows excellent soft tissue detail, enhanced with injection of intravenous contrast or oral contrast. This way the body is shown in slices, in any plane, usually axially, but ...Read more


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Will CT scan shows thickening in kidney?

Not sure: Ct with and without xray dye is a good test for some kidney problems. Not sure what you mean by thickening. Ct shows kidney stones, masses, kidney size/location ; can give a good idea of whether the kidneys are working well. Ct is also good at showing the site of blockage of urine flow, when present. ...Read more

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Will CT scan show a spot on my kidney, what could it be?

Could be a tumor: Could be a tumor, but may simply be a cyst, or a stone, or retained fat material. ...Read more

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What is involved in having a contrast CT scan for my kidneys?

What is involved in having a contrast CT scan for my kidneys?

Iv contrast +/- oral: After taking the contrast, taking the images does not take long. The IV contrast has potential 2 problems. You may be allergic to it like any medicine and it may slow down the kidneys if they are not working near full capacity. Your doc can tell the risk based on blood tests of kidney function. ...Read more

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What is a 'cortical lesion'? CT scan found several on my kidney?

What is a 'cortical lesion'? CT scan found several on my kidney?

Kidney cortex: Cortex refers to rim of kidney, the outer region that is 1-1.5 cm thick. Lesion can mean cyst or hemangioma or adenoma or other growth. Needs further eval. ...Read more

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I have polycycitic kidney. Right kindey stopped working. I looked online records. It said no focal mass on left kindey CT scan what does that mean

I have polycycitic kidney. Right kindey stopped working. I looked online records. It said no focal mass on left kindey CT scan what does that mean

Unsure: Difficult to know for sure without seeing study. Adult polycystic kidney disease of usually involves both kidneys. No "focal mass: usually means no mass effect whether cyst or tumor. Polycystic kidneys do not fail until middle age or later in life. Adult polycystic kidney disease is autosomal dominant, and commonly family history. Multicystic kidney usually causes nonfunctioning kidney from birth. ...Read more

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Hi, I had a ct scan awhile back and they found a soft mass in my kidney just wondering what it could be, they didn't further explain it to me. Thank u?

Difficult to say: Without any other specific details. Angiomyolipomas and cysts are common benign kidney masses. You are somewhat young for renal cancer. You can ask your doctor to explain, or post more specific details from the CT report. ...Read more

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Ct scan on my kidneys and bladder, how is this done?

Ct scan on my kidneys and bladder, how is this done?

Short exam: Ct is a relatively short exam taking less than 10 minutes. You will be placed in a donut like ring but it is not the small space like with an MRI so you should not feel claustrophobic. You will most likely be given IV contrast to better see the kidneys and urinary tract. Depending on the specific protocol, up to 2-3 separate scans are taken at different time points. Good luck! ...Read more

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What would a CT scan on my kidneys and bladder tell me?

What would a CT scan on my kidneys and bladder tell me?

Ct kidney: Ct can diagnose numerous kidney/bladder abnormalities, for example tumors, stones, obstruction, anatomic anomalies, inflammation, scarring, and abnormalities of other intraabdominal structures. ...Read more

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Results of CT scan of left kidney: several large stones that may be difficult to pass. What is the likely next step.

Results of CT scan of left kidney: several large stones that may be difficult to pass. What is the likely next step.

Here are some ...: First, Doc and you will jointly decide if, when, and how to remove the "offending" stones. The options may be percutaneous nephrolithotripsy / ESWL or the procedures through the urethra to bladder upto ureter / kidney depending on the number, stone load, instrument / equipment availability, surgeon's proficiency, etc. So, ask Doc for detail... ...Read more

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I drink soda all the time. I'm getting a CT scan today. Is it ok to drink soda right after I'm done r will it hurt my kidneys?

I drink soda all the time. I'm getting a CT scan today. Is it ok to drink soda right after I'm done r will it hurt my kidneys?

Soda is ok!: Soda will not cause any problems for your kidneys before or after a ct scan. If you are having IV contrast as part of the exam, it may even help to clear the contrast out faster. ...Read more

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Found out 5 months after having a CT scan in august2012 that I have 2.8 CM exophytic mass on my rt kidney. What should happen now?

Kidney mass: You should have been evaluated by a urologist and possibly undergone surgery

that's about the minimum

Please go back to the doctor asap. ...Read more

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I recently had a CT Scan and it showed that I have a 2.5cm low density lesion upper pole right kidney. What does this mean? Should I be concerned?

I recently had a CT Scan and it showed that I have a 2.5cm low density lesion upper pole right kidney. What does this mean? Should I be concerned?

Most: Of the time these turn out to be benign cysts, but you may need to have an ultrasound to be sure. Talk to your doctor about the results. ...Read more

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I had a ct scan for kidneys and it said trace amount of fluid in cul-de-sac what does that mean? I am also 8 days late with neg test should I worry?

No: Trace fluid in the cul-de-sac is a common, normal finding. You have a delayed period, however, you could repeat the pregnancy test in a week if still no period ...Read more

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Had a CT scan that noted a "punctate nonobstructing calculus" in rt kidney but didn't say size. What does that mean, and should I be concerned that it will pass soon?

Had a CT scan that noted a "punctate nonobstructing calculus" in rt kidney but didn't say size. What does that mean, and should I be concerned that it will pass soon?

Very small stones: We usually say punctate when it is no more than a couple of (mm) in size. While this may imply that there is nothing to worry, that is not always true. I have seen these stones stay as is for years in some patients and again I have seen them become larger and cause symptoms. The reason I believe is that we cannot tell with certainty where exactly in the kidney the calcification is. ...Read more

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Does pelvic CT scan show kidneys?

Does pelvic CT scan show kidneys?

Not usually.: The kidneys are normally seen in the abdomen. However, they can be located in the pelvis. Occaisionally we'll see a part of the kidneys depending on where they're located on a pelvic ct scan. ...Read more

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Would endometriosis make your kidneys look infected on CT scan?

Would endometriosis make your kidneys look infected on CT scan?

Probably not: It would be extremely unlikely to have endometriosis on your kidneys. It can block the ureter in the pelvis but it takes pretty extensive disease to do this and it would look like hydonephrosis rather than infection. Hope this helps. ...Read more

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How do I know if I've passed a kidney stone without another CT scan?

How do I know if I've passed a kidney stone without another CT scan?

Capture it: Hopefully, you were screening your urine and caught the stone. If the scan showed a 3 mm stone and you captured a 3mm stone, that is good enough. You should be pained free and a check of your urine from your doctor should show that the blood has cleared. ...Read more

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If I already know I have a kidney stone is it necessary to have a CT scan?

If I already know I have a kidney stone is it necessary to have a CT scan?

Possibly: If you know you have a kidney stone, a ct scan is not necessary unless symptoms develop. If the person remians asymptomatic, periodic imaging with ultrasound or other x-rays are adequate. However, small stones may be missed on these studies and a ct scan may be required to locate the stone. ...Read more

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My CT scan showed a 3 mm right interpolar calyceal stone. What is the interpolar region of a kidney?

My CT scan showed a 3 mm right interpolar calyceal stone.  What is the interpolar region of a kidney?

Middle of kidney.: The interpolar region is the middle of the kidney. Radiologists divide the kidney into three parts: the upper pole, lower pole, and the interpole (which is in between them).

I hope this helps. ...Read more

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Few 4mm in right, and few 3mm in left pole of kidneys, shows only on ultrasound and not CT scan? Why?

Cysts: It sounds like you are talking about cysts by the measurements. If you had an ultrasound where cysts were seen, drs usually order a ct scan to confirm. Ultrasound is very sonographer dependent. This is why a more objective test like the ct scan is ordered. Most cysts are considered "incidentalomas" meaning they were found, but are not clinically significant. Hope this helps! ...Read more

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Hi can doctors tell the difference between a cyst and a tumor on the kidney's just by looking at a CT scan?

Hi can doctors tell the difference between a cyst and a tumor on the kidney's just by looking at a CT scan?

Usually: Simple cysts of the kidney are common and most of them can be identified as such by radiologists with certainty. If there's a question, it's often a simple matter to sample the tissue with a needle. Likewise, dangerous tumors won't be mistaken for common cysts. ...Read more

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What does it mean when a CT scan result says "symmetric enhancement of right kidney compared to left kidney"?

What does it mean when a CT scan result says "symmetric enhancement of right kidney compared to left kidney"?

Symmetric enhance: Symmetric enhancement means that both kidney were taking up contrast to same level if contrast was used. Usually means there is inflammation or some other cellular activity (tumor, infection, etc) similar on both sides. Consult with us to help solve this issue. ...Read more

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I had a CT scan and the report suspects a 1mm non obstructing stone in my right kidney. Is it something I need to worry about?

I had a CT scan and the report suspects a 1mm non obstructing stone in my right kidney. Is it something I need to worry about?

Usually not a issue: In general, kidney stones that are just sitting in the kidney tissue itself don't cause problems. They become a problem when they start moving into the collecting system and into the ureter(tube from kidney that connects to bladder). That's when you start to have pain. ...Read more

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CT scan shows 4mm kidney stone on wall of my kidney. No sign of it passing soon w/o forcing fluids. Will it continue to grow if not passed?

CT scan shows 4mm kidney stone on wall of my kidney. No sign of it passing soon w/o forcing fluids. Will it continue to grow if not passed?

Kidney stone.: If left alone, it is likely to grow. Usually the largest size kidney stone thatÂ’ll pass without intervention is 5-6mm. ...Read more

Kidney (Definition)

The kidneys are paired organs that lie on either side of the vertebral column. Part of their critical functions include the excretion of urine and removal of nitrogenous wastes products from the blood. They regulate acid-base, electrolyte, fluid balance and blood pressure. Through hormonal signals, the kidneys control the ...Read more


Dr. Michael Gabor
1,885 doctors shared insights

Ct Scan (Definition)

Computed tomography (ct scan) or computed axial tomography (cat scan), is a medical imaging procedure that utilizes computer-processed x-rays to produce tomographic images or 'slices' of specific ...Read more