A Case of Quadrigeminal Variant of Perimesencephalic Nonaneurysmal Subarachnoid Hemorrhage

Autor:	Heena Dobhal, Sanjog Lalsinbhai Chandana, A.K. Singh, HC Pathak, A.M. Thakur, K.B. Saraswat
Rok vydání:	2022
Předmět:	General Engineering General Earth and Planetary Sciences General Environmental Science
Zdroj:	Indian Journal of Neurotrauma.
ISSN:	2213-3739 0973-0508
DOI:	10.1055/s-0042-1759870
Popis:	The incidence of perimesencephalic subarachnoid hemorrhage (PMSAH) is rare, 0.5 in 100,000 adults. It comprises 5 to 10% of all SAHs and approximately 33% of all nonaneurysmal SAH. Quadrigeminal SAH is a variant of perimesencephalic nonaneurysmal subarachnoid hemorrhage (PMNASAH) that is not well described in the literature. It may comprise up to one-fifth of PMNASAH cases and carries a similar benign prognosis. This variant of PMSAH is characterized by blood centered in the quadrigeminal cistern and limited to the superior vermian and posterior perimesencephalic cisterns. Noncontrast computed tomography of the brain is the initial investigation of choice, while four-vessel cerebral angiogram is the gold standard for the diagnosis of SAH.We report a case at our institute.
Databáze:	OpenAIRE
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