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Medical condition Subarachnoid hemorrhage Other names Subarachnoid haemorrhage CT scan of the brain showing subarachnoid hemorrhage as a white area in the center (marked by the arrow) and stretching into the sulci to either side Pronunciation / ˌ s ʌ b ə ˈ r æ k n ɔɪ d ˈ h ɛ m ər ɪ dʒ / Specialty Neurosurgery, Neurology Symptoms Severe headache of rapid onset, vomiting, decreased ...
A pseudosubarachnoid hemorrhage is an apparent increased attenuation on CT scans within the basal cisterns that mimics a true subarachnoid hemorrhage. [1] This occurs in cases of severe cerebral edema, such as by cerebral hypoxia.
Sulcal SAH is the most common form of intracranial bleed caused by vasculitis. On CT scans, sulcal SAH is seen as hyperdensity within the cerebral sulcus, while on MRI, it is seen as hyperintensity on FLAIR sequence, and hypointensity on GRE/SWI sequence. DSA is important in making the diagnosis of vasculitis or vasculopathy. [3]
perimesencephalic subarachnoid hemorrhage progressive macular hypomelanosis: PMI: point of maximal impulse or apical beat point of maximal intensity PML: polyoma virus progressive multifocal leukoencephalopathy PMP: Pseudomyxoma peritonei: PMN: polymorphonuclear leukocytes, that is, neutrophils PMR: percutaneous myocardial revascularization ...
Other diagnostic assessments include visual acuity tests to measure the impact on vision and lumbar puncture to confirm subarachnoid hemorrhage when imaging results are unclear. This comprehensive approach ensures that Terson’s syndrome is accurately diagnosed and managed.
A subdural hematoma (SDH) is a type of bleeding in which a collection of blood—usually but not always associated with a traumatic brain injury—gathers between the inner layer of the dura mater and the arachnoid mater of the meninges surrounding the brain.
In some instances, lumbar puncture may be required if there is a suspicion that the symptoms might be caused by other problems (meningitis or subarachnoid hemorrhage). This is the examination of the cerebrospinal fluid that envelops the brain and the spinal cord; the sample is obtained with a needle that is passed under local anesthetic into ...
Other authors associated hyponatremia in subarachnoid hemorrhage with increased levels of natriuretic peptides, negative sodium balance, and low central venous pressure. [30] [31] [32] A valid diagnosis of "salt wasting" requires evidence of inappropriate urinary salt losses and a reduced "effective arterial blood volume".