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The computed tomographic findings in 11 cases of malignant fibrous histiocytoma are discussed. The typical appearance of the eight primary tumors imaged was of a poorly marginated mass with an attenuation coefficient slightly lower than that of normal muscle. Central tumor necrosis was detected in three cases. Three of five abdominal tumors showed(More)
Spinal lipomas account for less than 1% of all spinal tumors. Prior to the advent of computed tomography, the preoperative diagnosis could only be suggested on the basis of nonspecific clinical and radiographic findings. We report a case of an unusual spinal lipoma that presented as a mediastinal mass. The low attenuation values of the tumor allowed a(More)
Adrenal masses are described in seven cases of non-Hodgkin lymphoma in a series of 173 patients. In all seven patients the lymphoma was diffuse rather than nodular. Three patients had adrenal masses at the time of presentation, whereas in four cases the adrenal gland was a site of tumor recurrence after therapy. Three patients had simultaneous bilateral(More)
The hypereosinophilic syndrome characteristically involves multiple organs. Its most severe debilities are associated with cardiac and central nervous system complications. Endothelial damage can result in intracardiac thrombosis, endocardial fibrosis, and progressive congestive failure. Computerized tomography is of value in making the diagnosis of an(More)
Seven patients who had tumors arising in the anterior face or paranasal sinuses and invasion of the anterior skull base were evaluated with magnetic resonance (MR) and high resolution CT. Magnetic resonance was superior in evaluating tumor encasement of the carotid artery and invasion of the cavernous sinus; for assessing the relationship of the tumor to(More)
Twenty patients with known liver metastases were examined with magnetic resonance imaging; four different pulse sequences were used and six different images were produced to allow comparison of pulse sequence performance at a 1.0-T field strength. Pulse sequence performance was in each case calculated by measuring contrast-to-noise ratios (C/N) comparing(More)
The authors report 14 cases of Wegener granulomatosis in which one or more paranasal sinuses were obliterated by bone. The maxillary antra were involved in all cases, with the other sinuses being affected less frequently. These changes are thought to result from chronic bacterial sinusitis superimposed on the granulomatous vasculitic process. Computed(More)