Biomedical subjects
Publications and source records attributed to J D DeWitt.
Extrapyramidal symptoms such as torticollis, oculogyric crisis and blepharospasm are typical manifestations of phenothiazine-induced drug reactions. Widespread use of such drugs, especially in children make these symptoms relatively commonplace. A case of phenothiazine-induced oculogyric crisis is presented. Included is a discussion of phenothiazine pharmacology.
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Hypoplasia of the carotid arteries is a rare congenital anomaly which when clinically symptomatic presents as cerebral ischemia or hemorrhage. Patients with this anomaly commonly have associated variations of the circle of Willis, an increased incidence of intracranial aneurysms and extensive networks of collateral vessels to accommodate the diminished carotid flow. Carotid artery hypoplasia should not be confused with other conditions which may have a similar appearance such as arterial dissection, vasculitis, and tubular fibromuscular hyperplasia.
A case of orbital varix demonstrated with computed tomography, ultrasound, and magnetic resonance imaging is reported. The clinical and radiographic findings are discussed.
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