he brainstem • Decrease in the size of cisterns and ventricles The acronym SEEPS (for Subdural fluid collections, Enhancement of the pachymeninges, Engorgement of the venous structures, Pituitary enlargement, and Sagging of the brain) recalls the major features of spontaneous intracranial hypotension on br

he brainstem • Decrease in the size of cistems and ventricles The acronym SEEPS (for Subdural fluid collections, Enhancement of the pachymeninges, Engorgement of the venous structures, Pituitary enlargement, and Sagging of the brain) recalls the major features of spontaneous intracranial hypotension on br