title: Evolution of changes in the computed tomography scans of the brain of a patient with left middle cerebral artery infarction: a case report.
abstract: BACKGROUND
  Stroke is a common and important condition in medicine. Effective early management of acute stroke can reduce morbidity and mortality.
  
  
  METHODS
  A 63-year-old man presented to the Accident and Emergency department with a history of collapse and progressive right-sided weakness. Clinically this was a cerebrovascular accident affecting the left hemisphere of the brain causing right hemiplegia. Computed tomography scans, performed 3 days apart, showed the evolution of infarction in the brain caused by the thrombus in the left middle cerebral artery. This is one of the early signs for stroke seen on computed tomography imaging and it is called the hyperdense middle cerebral artery sign.
  
  
  CONCLUSIONS
  Patients admitted with a stroke, undergo CT brain within 24 hours. The scan usually takes place at admission into the hospital and is done to rule out a bleed or a space occupying lesion within the brain. A normal CT brain does not confirm a stroke has not taken place. When scanned early, the changes seen on the CT due to an infarction from a thrombus may not have taken place yet. This paper highlights the early changes that can be seen on the CT brain following a stroke caused by infarction due to a thrombus in the middle cerebral artery.
authors.affiliation: Weston General Hospital, Weston-super-Mare, Somerset, UK. kurien.john@doctors.org.uk
authors.forename: Kurien
authors.initials: K
authors.lastname: John
authors.forename: Parag
authors.initials: P
authors.lastname: Singhal
authors.forename: Chris
authors.initials: C
authors.lastname: Cook