Male, 62 years old, with left-sided weakness. Evaluate for stroke. A band-like area of restricted diffusion is seen along the right lateral ventricular atrium with a few scattered adjacent satellite foci. These lesions are associated with T2 signal abnormality and minimal local edema. No significant generalized mass effect is detected.The background brain demonstrates numerous scattered foci of periventricular and pontine T2 hyperintensity. No large parenchymal defects are seen. No evidence of acute intracranial hemorrhage is detected. A focus of susceptibility is evident in the central pons compatible with chronic microhemorrhage. Apart from slight mass effect on the right lateral ventricular atrium, the ventricles are within normal limits.
Acute ischemia involving the periventricular tissues along the right lateral ventricular atrium with no evidence of hemorrhagic conversion and only minimal local edema.