57-year-old male with left pontine hemorrhagic lesion on previous brain MRI, evaluate for interval change Redemonstrated is a small focus of T2 hyperintensity is evident within the left aspect of the pons with associated mild susceptibility artifact. No significant edema or mass effect is seen. These findings are unchanged.Elsewhere in the brain there are several additional scattered small foci of nonspecific T2 hyperintensity within the periventricular and subcortical white matter. No restricted diffusion is seen. No mass effect or parenchymal edema is demonstrated. These foci are stable in appearance.No evidence of acute intracranial hemorrhage or any pathologic extra-axial fluid collection is detected. The ventricles are normal in size and morphology. The major intracranial flow voids are visualized.Bone marrow signal characteristics are unremarkable. Sphenoid sinus mucosal inflammatory findings are again demonstrated.
1.Stable small lesion within the left aspect of the pons with findings suggestive of associated blood products. The differential diagnosis would include a chronic small vessel stroke, old small hypertensive hemorrhage, or even a small vascular lesion such as a cavernoma. 2.Stable scattered small nonspecific white matter lesions which most likely represent mild chronic microvascular disease.