Communicating hydrocephalus in which the normal reabsorption of cerebrospinal fluid is blocked and causes increased pressure inside the head is common in some of the mucopolysaccharidoses.
2.
Included in the differential diagnosis of a new onset nighttime headaches in the elderly is drug withdrawal, temporal arteritis, Sleep apnea, oxygen desaturated, Pheochromocytoma, intracranial causes, primary and secondary neoplasms, communicating hydrocephalus, subdural hematoma, vascular lesions, migraines, cluster headaches, chronic paroxysmal hemicrania and hypnic headache.