Stroke is becoming a common disease, resulting in high rate of morbidity and mortality in the country and the world over, yet its diagnosis has been shrouded in the phrase “CerebroVascular Accident”. The study was aimed at highlighting the anatomical features and patterns of stroke presentation using the CT scan in a Nigerian population. 
Data obtained included cranial CT images of different shapes of lesions, the pixel values relative to the types of stroke and lesions. Results were tested using student t-test, Chi square test at confidence levels of p>0.05 considered to be significant. 
Results revealed that 30.8% of the study population was characterized with either oval hyperdense or hypodense lesions of the total 500 brains examined. Irregular lesions were observed in 21.8% while those with triangular, circular and recyangular lesions were 11.6%, 8.4%, and 6.4% respectively. Also 47.0% of the brain scanned had grossly dilated ventricles and sulci with shrunken gyri evidenced as cerebral atrophy while others with no anatomical abberations presented as a stoke mimics (8.0%) on pattern recognition.  Analysis shows that pixel values of lesions of ischaemic stroke were lower 107.77±8.40 than haemorrhagic stroke 205.03±80, these values were not significantly different from the normal at p>05. Values for cerebral atrophy 163.59±102.81, subarachinoid haemorrhage 200.81±13.26, subdural haemorrhage 223.60 and the mimics 100.55±0.00 at p>0.05. Based on the obtained result, it can be concluded that pixel values can be used for diagnosis of different types of stroke and mimics

COMPUTED TOMOGRAPHY STUDY OF THE ANATOMICAL FEATURES OF THE BRAIN OF STROKE (CVA) PATIENTS IN A NIGERIAN POPULATION