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4 Ιουλ 2023 · Subarachnoid haemorrhage (SAH) presents as a sudden, severe headache that peaks within 1 to 5 minutes (thunderclap headache) and lasts more than an hour; typically alongside vomiting, photophobia, and non-focal neurological signs.
- Cavernous Sinus Thrombosis
CST is the formation of thrombus (clot) within the cavernous...
- Cavernous Sinus Thrombosis
24 Απρ 2024 · CT. The sensitivity of non-contrast CT to the presence of subarachnoid blood is strongly influenced by both the amount of blood and the time since the hemorrhage. The diagnosis is suspected when a hyperdense material is seen filling the subarachnoid space.
4 ημέρες πριν · Subdural hemorrhage/hematoma (SDH) is a collection of blood accumulating in the subdural space. Subdural hemorrhage can happen in any age group, is mainly due to head trauma and CT scans are usually sufficient to make the diagnosis. Prognosis varies widely depending on the size and chronicity of the hemorrhage.
3 Νοε 2021 · On CT scans, subarachnoid hemorrhage (SAH) appears as a high-attenuating, amorphous substance that fills the normally dark, CSF-filled subarachnoid spaces around the brain, as shown in the...
1 Ιουν 2023 · Subarachnoid hemorrhages are life-threatening and result from the accumulation of blood between the arachnoid and pia mater. The incidence of subarachnoid hemorrhage in the United States is between 10 to 14 out of 100,000 individuals per year.
20 Ιουλ 2017 · Signs and Symptoms. The hallmark presenting symptom of aneurysmal subarachnoid hemorrhage is “the worst headache of my life.” 17 The onset of the headache is sudden, and the headache is severe...
26 Δεκ 2013 · Unenhanced CT shows extensive subarachnoid hemorrhage in central pattern, filling suprasellar (ss) and central cisterns, sylvian (Sy) and interhemispheric (i) fissures, and cerebral sulci, with associated hydrocephalus. Maxillofacial CT (not shown) showed fractures of sphenoid bone. Open in viewer.
