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Virtual colonoscopy (VC, also called CT colonography or CT pneumocolon) is the use of CT scanning or magnetic resonance imaging (MRI) to produce two- and three-dimensional images of the colon (large intestine), from the lowest part, the rectum, to the lower end of the small intestine, and to display the images on an electronic display device.
The hematoma can exert a mass effect on the brain, increasing intracranial pressure and potentially causing midline shift or deadly brain herniation. In the past this effect held additional diagnostic importance since prior to the invention of modern tomographic soft-tissue imaging utilizing MRI or CT it was not possible to directly image many ...
Laryngeal cancer begins in the larynx, or "voice box", and is the second most common type of head and neck cancer encountered. [5] Cancer may occur on the vocal folds themselves ("glottic" cancer) or on tissues above and below the true cords ("supraglottic" and "subglottic" cancers, respectively).
A videostroboscopy is an examination of the vocal folds using flashes of light to slow down the image of the vocal fold movement enough to provide a sharp picture of the phases of the movement cycle (mucosal wave.) [13] This procedure provides information about vocal fold vibrations during speech, vocal intensity and vocal frequency. [11]
As a result, cancer is typically discovered at a somewhat later stage than average. Some imaging procedures, such as MRIs (magnetic resonance imaging), CT scans, ultrasounds and mammograms with fetal shielding are considered safe during pregnancy; some others, such as PET scans, are not. [268] Treatment is generally the same as for non-pregnant ...
Leadpipe colon is a term used in radiology to describe a specific, characteristic appearance of the colon, typically seen on barium enema radiographs. The term is associated with a rigid, non-distensible colon that has lost its normal haustral folds, presenting a smooth, tubular, or "pipe-like" appearance. [ 1 ]
Laryngeal cancer may spread by: direct extension to adjacent structures, metastasis to regional cervical lymph nodes, or via the blood stream. The most common site of distant metastases is the lung. Laryngeal cancer occurred in 177,000 people in 2018, and resulted in 94,800 deaths (an increase from 76,000 deaths in 1990).
Laryngeal papillomatosis, also known as recurrent respiratory papillomatosis (RRP) or glottal papillomatosis, is a rare medical condition in which benign tumors form along the aerodigestive tract. [ 1 ] [ 2 ] There are two variants based on the age of onset: juvenile and adult laryngeal papillomatosis. [ 3 ]