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Doctor insights on: Will Kidney Stones Show Up On Ultrasound

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It it possible for kidney stones to show up on ultrasound and not of CT scan if so what kind of stones would they be (uric acid)?

It it possible  for kidney stones to show up on ultrasound and not of CT scan if so what kind of stones would they be  (uric acid)?

Uric acid stones: yes, this is possible: Uric acid stones are not very radio-opaque - so plain XRAY miss them; so might CT, unless contrast is used. Ultrasound will not miss them, unless small - less than 5 mm ...Read more

Dr. Michael Gabor
2,271 doctors shared insights

Sonogram (Definition)

An ultraound, also known as a sonogram, is a painless and relatively inexpensive imaging test that utilizes sound waves instead of ionizing radiation. There are no side effects. Ultrasound can give us two-dimensional, and in some applications three-dimensional, images of structures and organs in virtually any part of the body. In addition to diagnostic uses, such as evaluating abnormalities in the abdomen, pelvis, and breast, ultrasounds are commonly used to guide needle and catheter placement in a variety of surgical ...Read more


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Possible for kidney stone not to show up on ultrasound?

Possible for kidney stone not to show up on ultrasound?

YES: Sometimes you would need a different test to pick up stones. ...Read more

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Can a ultrasound show a kidney stone blockage thanks?

Can a ultrasound show a kidney stone blockage thanks?

Yes, depends on seve: If the blockage is complete & urine backs up into the kidneys, you can get a condition called hydronephrosis. This can be detected on ultrasound due to the dilation of the ducts in the kidneys (like stepping on a garden hose- water backs up & bulges). Ultrasound can miss a kidney stone due to its location or size; however, it can detect the *effects* of a kidney stone, by which diagnosis is made. ...Read more

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I had kidney stone surg 2 years ago and i feel o lot of pain in the same kidney ultrasound shows that is not any stone but my pain is getting worse

I had kidney stone surg 2 years ago and i feel o lot of pain in the same kidney  ultrasound shows that is not any stone but my pain is getting worse

Here are some ...: What you described suggests the current pain is not related with kidney or stone. So, collect & bring the info on the onset, degree, duration, interval, & progress of the symptoms over time to Doc for analysis, physicals, possible tests so to deduce possible Dx for reasonable Rx. Best wish ... ...Read more

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Please tell me, could a kidney stone not show on ultrasound?

Please tell me, could a kidney stone not show on ultrasound?

Some may not: Some kidney stones may not show on ultrasound .If the stones are less than 3mm the ultrasound exam may not be able to detect in some cases
cat scan is the standard test used in us to diagnose kidney stones, but it does involve risk of radiation as compared to ultrasound. ...Read more

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Does a CT or ultrasound always show kidney stones?

Does a CT or ultrasound always show kidney stones?

No: Ct and ultrasound does not "always" show kidney stones. The resolution may not be sensitive enough to see very small stones less than 2 to 3 mm. Depending on the thickness of the images on the ct scan, a stone may be potentially missed between the images taken by the ct scanner. Ultrasound may also over-read or miss very small stones as well. Overall though, the detection rate is still very hi. ...Read more

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I have gross hematuria. I think I passed a kidney stone since it's did not show on the last ultrasound. How long does the blood show after stone pass?

I have gross hematuria. I think I passed a kidney stone since it's did not show on the last ultrasound. How long does the blood show after stone pass?

Afew days but: The stoen may have passed but continued blood could indicate another stone of some other reason. Yoy need to discuss this with your physician ...Read more

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Ultrasound show kidney stone bilateral 4mm in lower pole with pain, blood in urine on and off pain now for a month ! how long will it take to pass?

Course is highly...: Variable. With persistent symptoms and known stones it is time to make a plan with your urologist. ...Read more

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My occult blood says +2 but the rbc says 0-2. Which is more accurate/ Also had a cystoscopy which is negative and ultrasound shows 7 kidney stones...

My occult blood says +2 but the rbc says 0-2. Which is more accurate/ Also had a cystoscopy which is negative and ultrasound shows 7 kidney stones...

The same for other Q: The findings of UA fit well with kidney stones, which require no urgent care, but advisable to be counseled for expectation. To gain more ideas on how to handle hematuria, please peruse a brief article in http://www.formefirst.com/hematuria.html. Best wishes to health, happiness, and success. ...Read more

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Urologist ordered CAT bc blood in urine and an earlier ultrasound that showed 4 kidney stones. What body parts will show up in the CAT scan?

Urologist ordered CAT bc blood in urine and an earlier ultrasound that showed 4 kidney stones. What body parts will show up in the CAT scan?

Abdomen and pelvis: The CT scan ordered when a patient has blood in the urine is of the abdomen and pelvis. It will show the kidneys, ureters, bladder and will also incidentally show the liver, lower lobes of lungs and spleen. Normally contrast is given intravenously when checking on urinary bleeding. Best wishes. ...Read more

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I was sent to get a blood test because of kidney stones that a sonogram revealed I have. My results show that my MPV is high at 12.7 Is that normal?

I was sent to get a blood test because of kidney stones that a sonogram revealed I have. My results show that my MPV  is high at 12.7 Is that normal?

Platelets: MPV=mean platelet volume
This is a little used value in thehemograom, with only weak correlation with disease states. Like red cells, younger platelets tend to be bigger, and stress reactions may prompt earlier release from the marrow. Many possible causes, but little utility in isolation. ...Read more

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Blood in urine reoccuing UTI CT scan 3mm kidney stone bladder ultra sound scan shows bladder not emptying proper what could this be?

Blood in urine reoccuing UTI CT scan 3mm kidney stone bladder ultra sound scan shows bladder not emptying proper what could this be?

Cystitis.: Gross hematuria probably as a result of cystitis caused by the bladder outlet narrowing or stenosis and not because of the kidney stone. By drinking more water like 8 cups a day you can pass the kidney stone. For the cystitis you need urine culture . Until the culture result comes back you can be put on an antibiotic such as cipro (ciprofloxacin) to stop the gross hematuria. ...Read more

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Do ultrasounds ever miss kidney stones?

Do ultrasounds ever miss kidney stones?

Yes frequently: Small stones can easily be missed, by any ultrasound machine especially by office ultrasound machines. Spiral ct scan is the most reliable imaging tool for small kidney stones. Flank pain & microscopic blood in urine are frequently good clues to presence of stones. Good news is that small kidney stones usually pass spontaneously & require no intervention. ...Read more

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Can kidney stones be found with an ultrasound?

Can kidney stones be found with an ultrasound?

Yes: Ultrasound may not see the stone well but may see swelling in the tube (ureter) where a stone has clogged up the drain. A cat scan (ct) is usually the preferred test to better see the stones. But, unlike ultrasound exposes you to some radiation. ...Read more

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Describe an ultrasound procedure for kidney stones?

Describe an ultrasound procedure for kidney stones?

Easy peasy: Usually you will be asked to come with a full bladder. Gel will be placed on your skin and a tech will place a small device over the gel to take pictures, typically of your bladder first. It is painless. Then, you will likely be asked to empty bladder, then kidneys will be imaged same way. If you have ever seen a pregnant woman get an ultrasound it is the same thing, just in a different area. ...Read more

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So are kidney stones fairly obvious on an ultrasound?

So are kidney stones fairly obvious on an ultrasound?

Ultrasound kid stone: 46F US asks "So are kidney stones fairly obvious on an ultrasound?" ANS: No. Most are too small but if the are blooking one or both kidneys that may be see. CT sees stones better. ...Read more

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What to do if I had a kidney stone and hydronephrosis last year, but when I do ultrasound this year?

Why not treated?: U hopefully consulted a urologist last year. Dr should have outlined a plan. U don't tell us whether the kidney stone was treated or not. We also do not know whether hydronephrosis was result of stone or not. Thus advise U contact urologist U saw before, or consult a urologist if U haven't done so before. ...Read more

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I had an ultrasound done and it showed a 6-7mm kidney stone. The X-ray showed clear. What one is right?

I had an ultrasound done and it showed a 6-7mm kidney stone. The X-ray showed clear. What one is right?

Stones : A small kidney stones detected by ultrasound can sometimes be missed in plain x-rays. You should go with the ultrasound results. they are small and in your case asymptomatic in many cases they pass on their own hydrate yourself well and read about diet that decreases future stone formation .. ...Read more

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What do you advise if i had a kidney stone and hydronephrosis last year, but when I do ultrasound this year?

What do you advise if i had a kidney stone and hydronephrosis last year, but when I do ultrasound this year?

Just...: For your clinical scenario, i would probably just review hx pertaining to stone clinical activity, get a kub if prior stone was radiopaque, and urinalysis, with US only for the first year after care for stone and its related hydronephrosis. That sounds reasonable. Detail? Ask urologist. ...Read more

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35 year old husband has 7mm kidney stone found on ultrasound by accident. He keeps getting these tiny stones. He has no symptoms. Is this serious?

35 year old husband has 7mm kidney stone found on ultrasound by accident. He keeps getting these tiny stones. He has no symptoms. Is this serious?

Urology evaluation: Lot of hydration ( 8-10 8 oz. glasses of water daily) plus acidify your urine with citric acid ( fresh fruit juices-OJ, lemon, lime. pineapple etc.) the citric acid will bind calcium crystals and 90% of all stones are made of calcium. ...Read more

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On ultrasound it says there are a few kidney stones and one is .9 cm x .6 cm. I have no pain though. It says interpolar area. Can it just be watched?

Get to urologist: who can give you specific advice. I think you should try medical management before you have a surgical procedure as long as you have no symptoms. But a lot depends on your age and general medical condition. ...Read more

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Is a catscan or ultrasound better for seeing kidney stones?

Is a catscan or ultrasound better for seeing kidney stones?

Depends: For renal stones (in kidney), ultrasound is usually adequate. Can also see dilation of the kidney when stone is blocking the outflow tube (ureter). For better clear picture and to see ureteral stones which are closer to bladder, ct scan is better. However, all ctscans must be considered carefully given the radiation exposure to the patient which ultrasound does not have. ...Read more

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Is it possible to have kidney stones, but not have any evidence of them in urine samples or ultrasounds?

Is it possible to have kidney stones, but not have any evidence of them in urine samples or ultrasounds?

Yes: These stones may be too small see on ultrasound and a routine urinalysis may easily miss stones as well. The best test for diagnosing the majority of stones in the urinary tract is a ct scan without contrast. This will detect the majority of kidney stones but a few may be missed occasionally. ...Read more

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I had all the symptoms of a kidney stone 2 weeks ago. I took medication and it eventually went away. After two weeks all the symptoms came back. Is this normal? I'm in constant pain and can't even focus on work or school. I got an ultrasound done and it d

Kidney stone??: If you truly had a kidney stone it is supposed to be one of the worst back pains there is and it is usually treated in the ER by putting an IV live in you and pushing in fluids until you pee it out. They try to capture the "sand" analyze it and modify your diet, hoping that you won't make another. If you have one that didn't pass there are techniques to break it up from outside and then there is s ...Read more

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What are the signs of a kidney stone on ultrasound?

What are the signs of a kidney stone on ultrasound?

Bright spots: Kidney stones show up on ultrasound as bright echogenic foci (white spots) within the substance of the kidney. If the stones are larger than 3 or 4 mm there will be a darker area behind the stone representing an acoustical shadow. Obstruction of the kidney by a stone will cause dilatation of the kidney's collecting system which will appear as black fluid spaces within the kidney. ...Read more

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Are kidney stones not able to be seen in ultrasounds?

Are kidney stones not able to be seen in ultrasounds?

Kidney stones: While kidney stones often are seen on renal ultrasound, it is a rather vague image at best. Most urologists rely on ct scans or ivp x-rays to identify and assess stones within the kidney or ureter. ...Read more

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What else can look like lots of small kidney stones in ultrasound?

Calcifications: Calcifications in blood vessels can sometimes look like kidney stones. If your doctors are unclear about whether or not you have kidney stones they may want to do a CT scan which is a better test than US for detecting and diagnosing kidney stones. ...Read more

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My fiancee got a kidney stone of 6mm in size according to the ultrasound, is it possible to pass it without surgery?

My fiancee got a kidney stone of 6mm in size according to the ultrasound, is it possible to pass it without surgery?

Ureteral stone: The size of the stone does not correlate well to the intensity of the pain. The nearly unbearable pain of "ureteral colic" is from spasm of the muscular ureter. Although likely to pass on its own within a few days, a 3mm stone sometimes will get stuck and fail to progress. A 6mm stone, less likely usually after 5 days, i recommend having the stone extracted with a ureteroscope as an outpatient. ...Read more

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I recently had an ultrasound of my right kidney where a kidney stone was found along with a 3mm bright echo was found. Should i be concerned?

I recently had an ultrasound of my right kidney where a kidney stone was found along with a 3mm bright echo was found. Should i be concerned?

Probably not...: Increased use of us or ct to evaluate body pain had led to finding small asymptomatic stone or mass in kidneys, lungs, liver, etc. Which is incidental and poses substantial dilemma on how to handle these subclinical findings. For kidney stone of 3 mm, i would leave it alone if you have no stone-related symptoms., but followed yearly with a x-ray film (kub).

More detailing, work with urologist. ...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


Kidney Stone (Definition)

Solutes precipitate and combine to form stones formed of calcium oxalate usually around a nidus of uric acid. Other solutes that form stones are ca and mg phosphates, cystine, and uric acid staghorn calculi form in the presence of chronic urinary tract infections. Stones can be painful, may require ...Read more