The hyperdense MCA sign and the MCA dot sign
نویسندگان
چکیده
منابع مشابه
Pearls & oy-sters: hyperdense or pseudohyperdense MCA sign: a Damocles sword?
• The presence of a true hyperdense sign can be confirmed by measuring attenuation value as compared to the normal-appearing contralateral side. • Mimics of a hyperdense sign (i.e., a pseudohyperdense sign) include vascular calcification, raised hematocrit, and intravenous contrast medium. • Careful attention should also be paid to the surrounding brain parenchyma to assess for hypodensity or a...
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To cite: Mahawish K. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/bcr-2015209317 DESCRIPTION A 48-year-old man presented with a 24 h history of neck pain, vomiting, vertigo and impaired gait. On examination, he was found to have left gaze provoked nystagmus and left arm and leg dysmetria with mild weakness, symptoms attributable to cerebellar dysfunction. He underw...
متن کاملHyperdense middle cerebral artery sign.
A 57-year old man presented with sudden onset hemiplegia. On examination he had global aphasia, a dense right hemiplegia and a right extensor plantar response. He had a history of diabetes mellitus, hypertension and a myocardial infarction one year ago. A non contrast CT scan of the brain done on the same day did not show a cerebral infarction, but showed a loss of visualisation of the insular ...
متن کاملHyperdense middle cerebral artery sign after trauma.
© 2014 American Osteopathic Association A 56-year-old man presented to the emergency department after a highwayspeed, single-vehicle motor vehicle accident. Physical examination revealed no evidence of head trauma but was notable for a Glasgow Coma Scale score of 6, with the patient exhibiting a withdrawal response to pain on his left side. Computed tomography findings included a hyperdense mid...
متن کاملValidation of computed tomographic middle cerebral artery "dot"sign: an angiographic correlation study.
BACKGROUND AND PURPOSE The middle cerebral artery (MCA) "dot" sign consists of hyperdensity of an arterial structure, seen as a dot in the sylvian fissure. The MCA dot sign has been proposed to indicate thrombosis of M2 or M3 MCA branches, analogous to the hyperdense middle cerebral artery (HMCA) sign indicating M1 thrombosis. The MCA dot sign has not been validated previously against the gold ...
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ژورنال
عنوان ژورنال: South African Journal of Radiology
سال: 2011
ISSN: 2078-6778,1027-202X
DOI: 10.4102/sajr.v15i3.378