Seminars in ultrasound, CT, and MR
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The clinical presentation of sinonasal malignancy overlaps that of more common benign inflammatory disease. For this reason, unsuspected malignant lesions are often first recognized on the screening CT exam. We will focus on the initial CT appearance of various malignancies and discuss the goals of imaging including the use of MR.
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CT performed without oral or intravenous contrast is the initial imaging study of choice in many situations for the detection of hemorrhage anywhere in the abdomen and pelvis. The presence or absence of hemorrhage can be determined rapidly, and the amount and precise location of hemorrhage can also be evaluated. This article reviews the appearances and the common and unusual etiologies of abdominal and pelvic hemorrhage on unenhanced CT. The role of intravenous contrast-enhanced CT in patients with known or suspected abdominal and pelvic hemorrhage is also examined.
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Semin. Ultrasound CT MR · Apr 1999
ReviewUnenhanced CT in the evaluation of the acute abdomen: the community hospital experience.
The "Great Mimicker," acute appendicitis, has finally found its match with the advent of rapid unenhanced computed tomography (RUCT). With little, if any, operator dependence, RUCT can be performed easily at any facility that has CT capabilities. ⋯ In this article we describe our experience, since devising the technique in 1991, with over 7,000 RUCT scans done on patients with acute abdominal pain, predominantly in the right lower quadrant. We show how RUCT is extremely useful and accurate, not only in the diagnosis of acute appendicitis, but in many other disease entities that mimic the "Great Mimicker."
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Semin. Ultrasound CT MR · Dec 1998
ReviewSquamous cell carcinoma of the oropharynx and oral cavity: how imaging makes a difference.
The development of modern imaging techniques has significantly altered the treatment and management of these malignancies. Important treatment decisions that were once made intraoperatively are now made by using information from CT and MR imaging. The intent of this article is to provide the specific information that needs to be transmitted to the referring otolaryngologist or radiation oncologist and which will alter the treatment of patients with squamous cell carcinomas of the oral cavity and oropharynx.
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The hypopharynx is a clinically silent area and early lesions may be asymptomatic for a long period. At presentation, primary squamous cell carcinoma of this area is usually advanced. Almost all of these lesions are studied with imaging as part of the clinical work-up. The goal of this article is to help the practicing radiologist convey a report which provides information that will directly influence treatment of patients with hypopharyngeal carcinoma.