Keywords: increased intracranial pressure, opening pressure (PubMed Search)
--- Venous drainage obstruction (i.e. cerebral venous sinus thrombosis).
--- Endocrine (i.e. obesity, hypothyroidism, Cushing's disease, Addison's disease).
--- Medications (i.e. vitamin A, cyclosporine, lithium, lupron, oral contraceptives,
amiodorone, and antiobiotics such as tetracyclines and sulfonamides).
--- Other conditions (i.e. pregnancy, steroid withdrawal, acromegaly, polycystic ovary
syndrome, systemic lupus erythematosus, sleep apnea, HIV).