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Bilateral approximately symmetrical hypodense areas located in the thalamus were encountered in two patients who recovered clinically. Regression of the lesions could be observed on CT. The clinical symptoms corresponded to the thalamic location. Since these two patients recovered, no autopsy material is available to prove the nature of the causative… (More)
While unilateral chronic isodense subdural hematomas as a result of indirect signs of a space-occupying lesion are easily recognizable on computed tomography (CT) and clearly diagnosed on the angiogram, bilateral chronic isodense subdural hematomas may cause considerable difficulty. In two cases with CT false negative findings we observed, retrospectively,… (More)
Computed tomography (CT) of 22 patients with histologically verified oligodendroglioma showed calcifications in 20 cases and contrast enhancement in 14. All of the enhancing cases proved to have malignant histological features. In 2 of the 14 malignant tumors, definite CT evidence (fluid-fluid level) of a cystic component was present.
Basilar artery occlusion was diagnosed by high-resolution computed tomography (CT) in 11 cases. The normal basilar artery imaged on plain CT scans has an attenuation value not higher than that of whole blood. If the CT attenuation value of the vessel is higher than that of blood, basilar artery occlusion is probably present. The tentative diagnosis can be… (More)
Two cases of subdural hematoma associated with dural metastasis are reported. The computed tomographic and angiographic features are presented. The possible pathogenetic mechanism is discussed. Our cases support the idea of obstruction of dural capillaries by neoplastic cells and subsequent subdural bleeding.
Five cases of traumatic delayed intracerebral hemorrhage are reported. At the admission two patients showed only contusional injury and three had acute intracranial hematomas, one with an extradural infratentorial and two with supratentorial hematomas, which were immediately removed. Repeated CT-scans revealed the delayed intracerebral hemorrhage. Three… (More)