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Hui, F.K., Tumialán, L.M., Tanaka, T., et al. (2009) Clinical differences between angiographically negative, diffuse subarachnoid hemorrhage and perimesencephalic subarachnoid hemorrhage. Neurocrit Care, 11, 64-70. doi:10.1007/s12028-009-9203-2

has been cited by the following article:

• TITLE: A minor perimesencephalic subarachnoid hemorrhage on CT changes

  AUTHORS: Yeting Zhou, Daoming Tong

  KEYWORDS: Headache; Perimesencephalic Subarachnoid Hemorrhage; CT Imaging; Lumbar Puncture; Angiography

  JOURNAL NAME: World Journal of Neuroscience, Vol.1 No.2, August 31, 2011

  ABSTRACT: Despite the increasing number of reports of patients with perimesencephalic subarachnoid hemorrhage (PMSAH), a minor or atypical PMSAH on CT changes has not been reported. We present the first described case of a minor subarachnoid hemorrhage located in the right perimesencephalic cistern on CT 4 h after headache onset. Twenty-six hours after headache on-set, another CT of the head showed that blood dis-persion. On the third day in hospital, examination of cerebrospinal fluid revealed xanthochromia. Minor PMSAH is rare type of SAH, and can been missed if there is a delay in CT imaging of the head. Any pa-tient with a suspected minor PMSAH or equivocal results on CT should undergo routine lumbar punc-ture.