Radiology
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Two cases of anterior wall perforation of a duodenal ulcer, resulting in pneumomediastinum and pneumoperitoneum, are presented. The literature regarding perforation of the gastrointestinal tract with associated mediastinal emphysema is reviewed.
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Computed tomography has revolutionized the diagnosis of ophthalmologic and neuro-ophthalmologic disease. High resolution CT with thin-section techniques has made available the depiction of finer anatomic orbital detail and permits radiologic detection of more subtle lesions than was previously available. ⋯ A segment of the superior ophthalmic vein was identified in 18 of 64 orbits examined by CT. Virtually the entire superior ophthalmic vein was identified in three orbits.