Computer tomography of pathological neck lesions
1997
: The introduction of high resolution computed tomography (CT) has significantly improved the quality of imaging of neck masses. Incremental dynamic scanning immediately after a quick bolus injection of contrast medium is essential in a majority of patients in order to obtain an optimum of information. This is especially true in the identification, mapping and staging of malignant lesions, which is the main indication for the examination. CT is also very sensitive, and yields detailed information about the location and extent of cystic and other benign lesions. Owing to the low attenuation of fat, the examination is very specific with respect to lipomas. CT has low specificity in the differentiation between benign and malignant lesions, and between cysts and solid tumours of the thyroid gland. In thyroid and parathyroid imaging other modalities such as ultrasound and scintigraphy are often more specific.
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