Reason: eval lesion in anterior pons History: BLE weakness. Again seen is a lesion with increased T2 signal in the anterior pons, left greater than right, without associated diffusion restriction, susceptibility or significant mass effect that measures approximately 2.0 x 1.5 cm. There may be some subtle speckled enhancement along the anterior aspect of the lesion, which may represent prominent vascularity. No masslike enhancement is identified.The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits, skull, paranasal sinuses, and scalp soft tissues are grossly unremarkable.
T2 hyperintense lesion within the pons without masslike enhancement. There is some subtle speckled enhancement along the anterior aspect which is suspected to represent prominent vasculature. This lesion remains nonspecific with differential including demyelinating, inflammatory and metabolic etiologies. A neoplastic process is considered less likely, as there is no significant mass effect or alteration of the contour of the pons.