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Although atlantooccipital dislocation is a well-recognized radiological entity, its computed tomographic (CT) recognition has not been previously described. It is the purpose of this report to show the complementary role of CT in precisely defining the abnormalities in both the coronal and the sagittal reconstruction planes. A case is presented and the(More)
The radiographic appearance and clinical significance of gastric varices in the absence of esophageal varices and secondary to splenic vein occlusion were studied. Eighteen patients were evaluated through medical records, angiography, and barium studies of the stomach and esophagus. The presence of splenic vein occlusion was determined by arteriography in(More)
Blunt injury to the neck can cause hemorrhage and pseudoaneurysm formation. A 76-year-old patient with severe blunt injury to the anterior neck was found to have entrapment of the left vertebral artery at C2-C3. Arch aortography 3 weeks postinjury revealed a large aneurysm at the injury site. The mass was surgically reduced, followed by ligation of the(More)
Immunosuppressive therapy is necessary in the treatment and prevention of rejection in renal transplant recipients. Unfortunately, these patients may become intolerant to this therapy when it is complicated by hypersplenism with leukopenia and/or thrombocytopenia. The therapy must then be either decreased or stopped, thus preventing adequate treatment or(More)
Obstructive jaundice with nondilated bile ducts was identified by percutaneous transhepatic cholangiography (PTC) in nine of 29 jaundiced patients in whom the etiology of the jaundice was not clearly established by clinical or laboratory means and no dilated ducts were seen at somography or computed tomography (CT). PTC was helpful in these none patients(More)
Ventricular shunts were evaluated by a shuntographic technique using metrizamide for the contrast material and delayed spot films and computed tomography (CT) to evaluate shunt function. Thirty hydrocephalic patients were studied who had clinical presentations of shunt malfunction. Fifty-two shuntograms were obtained; most demonstrated the cause of shunt(More)
The occult unilateral hydronephrotic kidney is often discovered during the genitourinary evaluation of patients sustaining blunt abdominal trauma. Few cases have been reported documenting the angiographic, computerized tomography (CT), and ultrasound appearances. Two cases are described which demonstrate that relatively minor trauma can precipitate(More)