Female, 33 years old, with left-sided weakness and facial droop. A solidly enhancing mass centered on the right cerebral peduncle and midbrain has increased in size now measuring 22 x 17 mm axial plane, previously 12 x 12 mm. The lesion contains some internal susceptibility likely related to petechial blood product.Edema related to this lesion has progressed as well and now spreads from the internal capsule down to the pons. The cerebral aqueduct appears to be narrowed but at present remains patent.No additional enhancing lesions are seen. No other areas of significant parenchymal signal abnormality, edema or mass effect are observed. There are no abnormal extra-axial fluid collections. The ventricles remain normal in caliber and morphology.
Interval increase in size of a tumor centered on the right cerebral peduncle and midbrain.