Journal of computer assisted tomography
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J Comput Assist Tomogr · Nov 2002
Case ReportsHemichorea-hemiballism in primary diabetic patients: MR correlation.
The purpose of this work was to describe the characteristic imaging findings and clinical presentations in patients with hemichorea-hemiballism (HC-HB) associated with nonketotic hyperglycemia (NKH) in primary diabetes mellitus (DM). ⋯ In patients with HC-HB with NKH in primary DM, T1-weighted MR images showed hyperintense lesions of the putamen or caudate. Early recognition of these imaging characteristics may facilitate the diagnosis of primary DM with hyperglycemia and lead to prompt and appropriate therapy.
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J Comput Assist Tomogr · Nov 2002
Case ReportsTranslocation of Broca's area to the contralateral hemisphere as the result of the growth of a left inferior frontal glioma.
We report a case of a patient with a left inferior frontal glioma in whom language functional magnetic resonance imaging (fMRI) paradigms produced activation of Broca's area on the right and Wernicke's area on the left. We propose that tumor invasion of the left frontal operculum led to cortical reorganization and interhemispheric transfer of Broca's area. This case emphasizes the importance of preoperative fMRI in assessing the location of eloquent cortices adjacent to a tumor and in guiding neurosurgical decision-making.
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J Comput Assist Tomogr · Nov 2002
Case ReportsGadolinium-enhanced multidetector CT angiography of the thoracoabdominal aorta.
A 93-year-old patient with a cardiac pacemaker and biochemical renal failure presented with back pain suspicious for dissection. We performed gadolinium-enhanced thoracoabdominal multidetector CT angiography using eight-channel multidetector CT. Uniform aortic enhancement of 140 HU was sufficient to exclude aortic dissection and defined an unruptured infrarenal abdominal aortic aneurysm.