Doctor insights on:
Can You Miss Something On A Lung Ct Scan
Ive had two chest xrays recently. they were clear is there a high chance they could miss lung mets? the hospital wont give me a ct scan on the chest.
CT has high dose: Initial chest and abdomen CT for staging is often done for many primary cancers. The need for CT depends on the primary tumor mostly due to the likelihood of mets. given the type and size of the cancer. An old article: "The significance of pulmonary nodules detected by CT but not by chest radiography in tumour staging" in Clin Rad 44:6 Dec 1991, Pp 410-412 http://www.sciencedirect.com/scienc ...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
Can CT scan miss lung cancer ? Can an MRI find it while doing scan on thorastic spine? Both without contrast
Had a lung CT scan which indicated that i had a slightly enlarged heart. I had the scan because i've had a chronic cough for some months now.
Many things: The general categories are Infection, Cancer, Non-cancer tumors, collapsed lung, blood, fluid, and more. The radiologist should be able to narrow down the potential causes from the appearance. Ask for a detailed radiology report. If this doesn't satisfy you, speak with your primary care doctor. ...Read more
Infection, Cancer, +: Infection, hemorrhage, tumors (benign and malignant (cancerous)) fluid and even fibrosis can have a similar appearance. If it is mostly calcified, it is likely benign, old infection called a granuloma. Comparison to older scans can help determine if it has grown. The concern is whether or not it is cancer. Recommend seeing a primary care provider, perhaps a pulmonologist consult and pet/ct. ...Read more
Need to know more: About the findings on a ct. I am not familiar with the term "lung polyps". Pulmonary nodules are quite common, and depending on appearance, density and stability (if an older scan is available), can be accurately classified as benign. Unfortunately, although most are benign, for many patients, we cannot tell for sure on 1 scan, so further workup is necessary. Please discuss this with your doc. ...Read more
Dependent opacity?: Any opacities in the lung should be investigated- see pcp or pulmonologist. ...Read more
A ct scan found several cysts on my lungs and a pluralparenchymal opacity also what do these finding mean?
Several things: Cysts can be acquired secondary to previous lung disease such as infection, congenital etc,Not usually problem unless get very large, infected, or burst causing air in pleural space.Pleuroparenchymal density usually nodule which can be scar tissue, infection, tumor etc. A lot depends on whether lesion is stable or progressive. If had previous xray good to compare. Do not know reason for chest xray ...Read moreSee 1 more doctor answer
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
Ct scan uses data from a beam of xrays and reconstructs a cross sectional image of your body. It is a high dose of xrays and used only when the benefits outweigh the risk. Cancer risk is 1 in 500 in children. Also using iodinated contrast might cause transient renal failure in about 5% of patients. (contrast induced nepropathy) most do not explain this to the patient as ...Read more
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