Lesions affecting the dorsal midbrain can result in a constellation of ocular findings such as vertical gaze disturbances, convergence retraction nystagmus, light-near dissociation of pupils, and eyelid retraction. Although bilateral superior oblique palsy can occur after a stroke, its occurrence secondary to nontraumatic brainstem hemorrhage is extremely rare. We report a combination of dorsal...

To determine the chronologic changes in the MR appearance of brainstem hemorrhage and to evaluate the clinical efficacy of MR imaging, 15 patients were examined with a 0.5-T MR scanner with inversion-recovery (IR) and T2-weighted spin-echo (SE) images. In the acute stage (up to the sixth day), hematomas were hypo- or isointense on IR images and isointense and then hypointense on SE images. In t...

Cranial computed tomography (CT) scans of 1,600 head trauma patients, 67 of which demonstrated evidence of brainstem injury, were reviewed. CT diagnosis of brainstem injury was based on direct and indirect evidence. Direct signs, which include focal hemorrhage, significant intraparenchymal contrast enhancement, hemorrhagic contusion, and edema of the brainstem, appear as areas of high density, ...

We describe a characteristic distribution of cisternal blood in 52 patients with nonaneurysmal subarachnoid hemorrhage proved by a normal angiogram. On CT, the center of the bleeding was located immediately anterior to the brainstem in all patients, which was confirmed in four patients who were studied with MR imaging. Extension to the ambient cisterns or to the basal parts of the sylvian fissu...

Treatment for cerebral aneurysms is performed because aneurysm poses a risk of future neurologic deficits due to intracranial hemorrhage. Such surgical and endovascular treatment are prophylactic prevent harm patients. Ironically, these procedures themselves pose similar risks. During aneurysms, intraoperative neurophysiologic monitoring (IONM) can be used assess the functional state brain. Thr...

Presented here is a 36-year-old male with arterial hypertension who developed brainstem edema and intracranial hemorrhage. Magnetic resonance scan revealed diffuse brainstem hyperintensity in T2-weighted and fluid-attenuated inversion-recovery images, with an increase in apparent diffusion coefficient values. After a reduction in blood pressure, rapid resolution of the brainstem edema was obser...

OBJECTIVE Surgical resection of thalamic and brainstem cerebral cavernous malformations (CCMs) is associated with significant operative morbidity, but it may be outweighed, in some cases, by the neurological damage from recurrent hemorrhage in these eloquent areas. The goals of this retrospective cohort study are to describe the technical nuances of surgical approaches and determine the postope...

A 62-year-old man was admitted with a hypertensive emergency, anisocoria and decreased level of consciousness. The CT scan showed a hemorrhage in the brainstem and an intraocular hemorrhage (Figure), consistent with Terson’s syndrome, a condition that is classically characterized as a vitreous hemorrhage secondary to a subarachnoid hemorrhage. However, it can also be considered as a traumatic h...