 There is a punctate focus of bright signal on diffusion-weighted imaging in the left pons (series 301, image 206), with questionable corresponding low signal on the ADC map. There is no associated hemorrhage or mass effect evident. No diffuse-weighted abnormality is seen otherwise.There are mild periventricular and pontine T2 hyperintensities, which are non-specific though likely represent mild small vessel ischemic disease. The ventricles and sulci are normal in size. The cerebellar tonsils are in normal position. The pituitary gland is normal in size. There are no extraaxial fluid collections or subdural hematomas. Flow voids are present within the major vessels indicating patency. The paranasal sinuses and mastoid air cells are clear.
1. Punctate focus of bright signal in the left pons on diffusion-weighted imaging with questionable corresponding low signal on the ADC map. This may represent artifact versus a true focus of diffusion restriction secondary to small vessel ischemia. 2. Mild chronic small vessel ischemic disease. 