We have recently presented (AJNR 2009, Letter to the Editor) the regression of a dilated PVS in the temporal stem, after surgery of a pituitary nonfunctioning macroadenoma. We have other two cases, both in the temporal stem, one after pituitary apoplexy (most likely in macroadenoma but no surgical confirmation), and the other one after surgical resection of a cranial vault meningioma invading the superior sagittal sinus (far away from the dilated temporal stem PVS). We are trying to publish these last two cases.
Has anyone other cases? Which is the frequency of regression of dilated PVS? Is it frequent, and we simply do not look for this?
Best regards to all of you.