Doctor insights on:
White Spots On Lung Ct
Tricky: Not all cancers are bright on pet scans and not all bright activity in a pet scan is cancer. Inflammation/infection can also show bright activity. Pet scans are performed in conjugation with ct (pet/ct) and though pet is great for detecting metabolism, its specificity is not as great. Reading a pet requires care/skill. Normal activity is seen in the brain, heart, liver, spleen, kidneys, bladder. ...Read more
Deoxygenated blood enters the lungs from the right side of the heart and travels to the lungs. When you inspire, oxygen flows into the lungs, transverses the capilliares and attaches to hemoglobin down a gradient. At the same time, co2 diffuses into the capilaries and is expelled with exhalation. Oxygen rich blood then flows to the left side of the heart and into the ...Read more
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It depends: Like many things in medicine, it depends. Some of it depends on the patient's symptoms, age. Many people have "white spots" on mris; there can be non-specific small vessel white matter disease seen on the MRI of many individuals with a western diet. White spots on an MRI also can mean ms, but it is usually in a certain pattern that is more specific for ms. Discuss your MRI with your neurologist. ...Read moreSee 2 more doctor answers
Should i worry about my chest CT scan showing multiple patches of ground glass infiltrates on my lungs?
No not usually: Usually these are findings due to prior swelling or infection in lungs; even based on where you grew up. We use stability on cts to confirm benign nature. Sometimes treatment w/ antibiotics considered. Biopsy considered with hi risk though age & smoking history important. ...Read moreSee 1 more doctor answer
CT shows 12 mm bright white lesion in brain. Looks like a hollow rock! also small speck like white spots. Could this be MS lesion, Dizzy/headaches?
Possible: Tonsil cancers can present as a non painful swelling in the neck. You might be able to see something on your tonsil as well. It could just be an infection or calicification. This type of cancer is rising in your age group due to it's association with hpv. Get checked out by an ear nose and throat specialist for an appropriate evaluation. ...Read more
Follow established : Depends on smoking, infection, enviornment history & size of nodule. At ~1.2 cm, ct or pet-ct may be indicated in 3 mos. With hi suspicion and no prior nodule, could biopsy now. Else consider that if repeat scans in 9-12 then 24 mos are all stable, then could stop scans. ...Read more
Lumpectomy and radiation last year. Was small amt of cancer in node. Now small shadow on upper right lung CT but radiation on left side. Lung cancer?
Difficult to say: small shadow can be many different things. In the absence of old studies this could have been there for years. Old study is crucial before jumping to conclusions. Old granulomas from old infections can present the same way. It is best to err on the side of caution and have a follow up study to see if it changes before jumping to conclusions. ...Read more
Sacrum x-ray shows a few small black dots on lower pelvic bone & 2 large white encapsulated spots in pelvic space, what could these anomalies be?
Xray: xrays of the sacrum also will show signs of gas and particles in the large intestine. An xray takes 3 dimensions and reduces it to 2 dimensions, overlaying multiple structures into a flat image, distorting things to some degree. Pelvic phleboliths (vascular calicifications) are common. The sacrum also has foraminae where nerves pass, which may appear as dark spots. ...Read moreSee 1 more doctor answer
CT abnormalities: You need to see a doctor as soon as possible. Nodules on the lungs need to be biopsied. You may have a metastatic tumor in your lungs. Have your physician arrange for a ct-guided biopsy of one of them so tissue can be sent to a pathologist to see what they are. You may also need as well a ct of your kidneys as soon as possible to see if they are responsible for your lung nodules. Good luck. ...Read moreSee 1 more doctor answer
Yes and no: Areas with cancer are usually hypermetabolic in a pet scan due to the increased uptake of the radioactive glucose by cancerous cells. Looking at an FDG pet scan alone, you can grossly see "dark" areas in the brain, heart, kidneys and bladder and these are due to physiologic distribution/excretion of fdg. Not all "dark" is cancer and cancer is often but not always "dark". ...Read moreSee 3 more doctor answers
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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