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Lacunar infarct case study

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Anterior cerebral artery ACA territory infarcts are much less common than either middle or posterior cerebral artery territory infarcts. ACA territory infarcts are less common because if the A1 segment is occluded there is generally enough collateral flow via the contralateral A1 segment to supply the distal ACA territory 2. Embolic strokes often with MCA involvement are the most common cause 3. Rarely, they are also seen as a complication of severe midline shift , where the ACA is occluded by mass effect or severe vasospasm.

Lacunar infarct | Radiology Reference Article |

Posterior inferior cerebellar artery PICA occlusion may cause infarction of any part of the vascular territory of the PICA , namely the posterior inferior cerebellum, inferior cerebellar vermis, and lateral medulla. Typically considered the most common territory involved in cerebellar infarction , although at least one study 1 has demonstrated similar frequencies of PICA and superior cerebellar artery SCA infarcts. Vertigo, nausea and truncal ataxia are the most common presenting features. Headache and neck pain is normally the result of full posterior inferior cerebellar artery territory infarcts and is likely secondary to the associated swelling and mass effect 3.

A transient ischemic attack TIA , commonly known as a mini-stroke , is a brief episode of neurological dysfunction caused by loss of blood flow ischemia in the brain , spinal cord , or retina , without tissue death infarction. Both are caused by a disruption in blood flow to the brain, or cerebral blood flow CBF. The definition of TIA was classically based on duration of neurological symptoms. The current widely accepted definition is called "tissue-based" because it is based on imaging, not time.
Intracerebral hemorrhage ICH , also known as cerebral bleed and intraparenchymal bleed , is a sudden bleeding into the tissues of the brain , into its ventricles , or into both. Symptoms can include headache , one-sided weakness, vomiting, seizures, decreased level of consciousness , and neck stiffness. Causes include brain trauma , aneurysms , arteriovenous malformations , and brain tumors. Treatment should typically be carried out in an intensive care unit. Cerebral bleeding affects about 2.

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