TABLE 1.

Etiology and management options for hydrocephalus.

Hypersecretory	Obstructive	Communicating	iNPH	Congenital
Etiology of hydrocephalus
Choroid plexus papilloma carcinoma	The obstructions are commonly caused by different tumors at foramina Monro, cerebral aqueduct, forth ventricle, foramen magnum, etc.	The most common causes are post-hemorrhagic, post-inflammatory, and post-TBI changes resulting in blocking of CSF absorption at the arachnoid granulations	A type of communicating hydrocephalus with increased incidence in older age with an unknown pathogenesis and no increase in ICP	Most caused by genetic-related congenital malformations and prenatal hemorrhage or infection
Management options
Choroid plexus coagulation	Ventriculoperitoneal shunt, ventriculoatrial shunt, ventriculo-pleural shunt, lumboperitoneal shunt, and Torkildsen shunt. Endoscopic third ventriculostomy is used in aqueductal stenosis to avoid a permanent shunt			Multidisciplinary approach