Neurocysticercosis (NCC)is one of the common parasitic infection of the central nervous system, caused by tenia solium. We present here a case of 19-year-old female presented with partial hanging, on CT brain incidentally found to have asymmetric ectasia of right lateral ventricle, for which MRI was done revealed - intraventricular neurocysticercosis causing obstructive hydrocephalus. Extra parenchymal neurocysticercosis can occur in ventricles, sub arachnoid space, spine and eyes. A recent study reported an overall frequency of subarachnoid cysts in 2%, ventricular cysts in 6%, and hydrocephalus in 16% of NCC cases. It may be associated with any neurological sign and symptom. Focal neurological deficits have been recognized in one-third of symptomatic patients. Motor deficits, involuntary movements, Parkinsonism, language disturbances, sensory deficits may occur in some patients. Psychiatric disorders may mark the evolution of hydrocephalus, As in our case, patient with unilateral hydrocephalus presented with alleged history of hanging , it is important to rule out organic brain diseases in all cases with psychiatry manifestations.

Neurocysticercosis Hydrocephalus Psychiatry disorder None

Neurocysticercosis (NCC) is a common parasitic infection affecting central nervous system and is prevalent in Asia and Africa. It affects the brain parenchyma, subarachnoid spaces and ventricles. Prevalence of human taeniasis varies from 2.5% to 8.0% in India according to various studies data. Neurocysticercosis causing epilepsy is about one per 1000 population. It is a parasitic infection by Taenia solium. Humans being only definitive host and disease is seen when the human beings ingest egg present in food contaminated with feces of the tapeworm. Neurocysticercosis is classified based on its location- subarachnoid-cisternal space, parenchymal, ventricles, spinal and mixed form. These different forms can co-exist. Parenchymal is the most common location. 1

It may be associated with any neurological sign and symptom. Focal neurological deficits have been recognized in one-third of symptomatic patients. Motor deficits, involuntary movements, Parkinsonism, language disturbances, sensory deficits may occur in some patients.3% of infected people can present with strokes. They also can present with features of raised intracranial pressure when hydrocephalus occurs. 2

Hydrocephalus is a neurological problem caused by excessive accumulation of cerebrospinal fluid(CSF) due to abnormal secretion, circulation and absorption. It is one of the cause for reversible dementia, but role psychiatry manifestations is yet to delineate. 3 When hydrocephalus occurs due to any infective agent, it is termed as post-infective hydrocephalus (PIH). 4

Hereby presenting a rare case of neurocysticercosis presented with unilateral hydrocephalus.