Female, 81 years old, with drifting to the left side on ambulation. Examination for radiosurgery planning. An enhancing mass within the right aspect of the medulla is unchanged in size. Also unchanged is a punctate focus of enhancement within the right internal auditory canal. No definite additional masslike enhancing lesions are seen. An area of strong susceptibility effect is redemonstrated within the left posterior cingulate gyrus. Prominent enhancing veins which course adjacent to this area are compatible with a developmental venous anomaly.
1.No significant change in the size of an enhancing right medulla mass.2.No change in a punctate focus of enhancement within the right IAC which may represent an incidental schwannoma, less likely an additional metastatic lesion.3.Strong susceptibility effect is redemonstrated within the left posterior cingulate gyrus with an associated developmental venous anomaly. Although not entirely typical, this constellation of findings may represent a cavernous malformation with evidence of prior bleeding. Other etiologies are not excluded.