✓ A case is reported in which a left frontopolar artery aneurysm was demonstrated, disappeared, and then reappeared in a series of angiographic studies obtained during the conservative management of two episodes of subarachnoid hemorrhage. Only 23 days separated the first and last angiograms; three days later the aneurysm was successfully clipped.
Two cases of superior sagittal sinus thrombosis were diagnosed using a new technique of dynamic radionuclide brain-imaging. With the patient's head in the posterior oblique position, and 80-lens optical camera records the appearance of radionuclides in the superior sagittal sinus. This technique is quick and noninvasive, and serial studies are easily performed. Dural sinus thrombosis is difficult to diagnose on clinical findings alone. Dynamic canning should be used to screen high risk patients, such as those having pseudotumor syndrome or clotting disorders and elderly patients having pulmonary emboli or unexplained deterioration of mental status.
Analysis of radiographic and physical findings in 114 patients with trauma to an extremity demonstrated that when other physical findings are normal, arteriography is unnecessary. If any physical sign of peripheral vascular injury exists, such as weak or absent pulse, neurologic deficit, bruit, or expanding hematoma, arteriography is essential to define the anatomy and determine the need for surgery.
Benign nasal polyposis, when extensive, can cause bone displacement and destruction within the nasal cavity and paranasal sinuses. Consequently it may be difficult to distinguish this entity from a malignant neoplasm.
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