INTRACRANIAL MASS LESIONS. Intracranial tumors, aneu-rysms, hemorrhages, and inflammatory processes may turn out headaches as result of a rise in intracranial pressure and other factors. Increased intracranial pressure, whether due to tumor or not, will virtually perpetually be accompanied by headache. The presence of papilledema due to increased intracranial pressure is a useful aid in [...]