Nontraumatic subarachnoid hemorrhage is a neurologic emergency characterized by the extravasation of blood into the spaces covering the central nervous system that are filled with cerebrospinal fluid.

A subarachnoid hemorrhage occurs when blood leaks into the space between two of the membranes surrounding the brain. A swollen blood vessel, or aneurysm, usually ruptures and causes the condition.

The neurologic examination was normal. Computed tomography (CT) of the head without contrast enhancement showed diffuse subarachnoid hemorrhage and enlargement of the temporal horns of the lateral ...

Subarachnoid hemorrhage (SAH) refers to bleeding within the subarachnoid space, which is the area between the brain and the tissues that cover the brain. The subarachnoid space is the space where ...

Subarachnoid hemorrhage, the third most common type of stroke, accounting for 5–10% of all cases, could be drastically ...

A 45 year-old man developed the lightning onset of an explosive headache followed by coma. Subarachnoid Hemorrhage - Basilar Artery Aneurysm. Axial CT scans without contrast. Note the bright signal ...

People with a suspected subarachnoid haemorrhage can present with a wide range of symptoms and signs. There was little evidence to indicate which symptoms or signs specifically point to a diagnosis of ...

Patients who experience a nonaneurysmal subarachnoid hemorrhage differ from patients who suffer an aneurysmal subarachnoid hemorrhage in initial presentation (including neurological examination ...

In addition to the outermost dura, middle arachnoid, and innermost pia membranes surrounding the brain, researchers led by Kjeld Møllgård, University of Copenhagen, and Maiken Nedergaard, University ...

A 45 year-old man developed the abrupt onset of the "worst headache" of his life. Subarachnoid Hemorrhage. Axial CT scans without contrast. Note the bright signal in several locations which signifies ...