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Can Ct Scans Miss Glioblastoma
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 angiogram: A regular ct scan might detect a large aneurysm with calcium. A test that is designed specifically to look for aneurysms is the ct angiogram. With this test contrast goes into the vessels of the brain. If there is an aneurysm that is larger than 2 mm, it should be detected with this technique. ...Read more
They can: The diagnostic yield of increased with use of IV contrast material as some tumors disrupt the so called blood brain barrier affording the contrast the ability to infiltrate from the blood stream into the tumor. Small tumors that have not disrupted the integrity of blood vessels may escape detection on CT especially if the have the same radiographic tissue density as their surrounding tissue. ...Read more
It is possible: Pancreatic cancer can begin in various locations(head, body or tail of the pancreas) and can be quite small yet cause lots of symptoms. So despite CECT there is small chance of missing this tumor unless the focus of the CT is on the Pancreas and the test is planned and done with this diagnosis in mind. In fact there are special protocols for making this diagnosis.That may not have been done here. ...Read more
OnlyAfterLongEnough: Atherosclerosis, known to start ~age 7 on average, & microcalcifications (within artery wall smooth muscle cells just outside the plaque) can be seen with a microscope & ca+2 stains within early years but are too small to see with any current ct machines. These may become visible by the best ct machines by early 30's, 2 decades later but typically a decade before obvious clinical events & symptoms. ...Read moreSee 2 more doctor answers
Not always: Brain CT scans without contrast do not always miss cerebellar tumors. A tumor whose density is different from that of its adjacent brain tissue, or whose size is such that it pushes away adjacent brain tissue (distorting the normal shapes and outlines) will likely be visible even on noncontrast scans. ...Read moreSee 1 more doctor answer
Detects mass: Imaging, either by ultrasound, ct or MRI detects a mass in the ovary and cts are good at that, but not the only modality. Current imaging techniques are good at suggesting ovarian cancer. Actual diagnosis of the nature of the mass requires examination of the tissue by a pathologist. ...Read moreSee 2 more doctor answers
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