One-third of lumbar punctures are associated with blood from a traumatic tap. Absence of xanthochromia and the presence of fewer than 2000 × 10 6 /L red blood cells on a tap excludes the diagnosis of ...

A subarachnoid hemorrhage can also result from other sources, such as a traumatic head injury. A fall or a motor vehicle accident may lead to a subarachnoid hemorrhage. Other causes of a SAH ...

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

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 ...

For the study, researchers reviewed state hospitalization databases for New York and Florida and identified 39,475 people hospitalized for non-traumatic subarachnoid hemorrhage between 2007 and 2017.

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 ...

In some cases, trauma to the brain during an injury can cause aneurysms and result in a subarachnoid hemorrhage. According to the Brain Aneurysm Foundation, 1 in 50 people is estimated to have an ...

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.