Isolated hypersomnia due to bilateral thalamic infarcts.

We describe a unique patient who developed hypersomnia as the sole presenting symptom of bilateral thalamic infarcts.

Electroencephalographic abnormalities in baclofen-induced encephalopathy.

We report a patient in whom the characteristic electroencephalographic features of baclofen intoxication are highlighted and emphasize the role of electrographic abnormalities in the diagnosis of this condition.

Reversible sensorineural hearing loss with normal brainstem auditory evoked potentials in pontine hemorrhage due to capillary telangiectasia.

Capillary telangiectasias are vascular malformations most commonly found in the pons that are rarely associated with hemorrhage. We describe a unique case of pontine capillary telangiectasia causing central brainstem hemorrhage leading to reversible sensorineural deafness associated with a normal brainstem auditory evoked response.

Transient CT hyperattenuation after Merci clot retrieval and intraarterial thrombolysis in acute stroke mimicking subarachnoid hemorrhage.

Unenhanced computed tomography (CT) revealed hyperattenuating lesions in two patients with acute stroke immediately after clot retrieval with the Merci device in one patient and after intraarterial thrombolysis in the other. These areas of hyperattenuation were noted in the middle cerebral artery territory in the first patient and involving the brainstem, cerebellum, and tentorium in the second. Both were falsely interpreted as subarachnoid hemorrhage.

Penumbra, the basis of neuroimaging in acute stroke treatment: current evidence.

In modern medicine brain imaging is an essential prerequisite not only to acute stroke triage but also to determining the specific therapy indicated. This article reviews the need for imaging the brain in acute stroke, penumbral pathophysiology, penumbral imaging techniques, as well as current status of various imaging modalities that are being employed to select patients for specific therapeutic approaches.