Intracranial tumors (Brain tumors) or space occupying lesions of the brain account for an important part of all neoplasm’s of the body, their incidence ranging from 10-15% of all neoplasm’s of the body. These involve both sexes and can occur at all age groups though some primarily occur in childhood. Intracranial tumors (Brain tumors) are classified [...]

Encephalitis is a disease of Central nervous system which involves a number of neurotropic viruses and these produce number of conditions ranging from meningitis, encephalitis to myelitis etc. Some of the viruses may remain latent in the nervous system and get reactivated later. Most viruses have a phase of extra neural viral replication before involving [...]

Encephalitis lethargica made its first appearance in 1915 in the form of a wide spread epidemic and many epidemics of the disease occurred round about that period. Now the disease is seen in sporadic form. Encephalitis lethargica involves all age groups and both sexes. There is a seasonal incidence of the disease and it occurs mostly in [...]

Japanese encephalitis is a non contagious, mosquito transmitted disease caused by a flavavirus and is the most common causes of epidemic encephalitis in India. It mainly affects young adults and children. Japanese encephalitis (JE) is a zoonotic illness with man as a dead end. The natural host is the pig and the reservoirs of virus are migratory [...]

Acute viral encephalitis is an acute inflammation of the nervous system where brain, brain stem or cerebellum is involved due to a virus; It may be primary or post infectious. Primary form occurs when there is direct invasion or replication of virus in the nervous system while post infectious follows either other viral infections or after [...]

Cerebrovascular disease constitute one of the commonest forms of disorders of central nervous system involving cerebral vessels. These disorders come suddenly and interfere with the blood supply of the brain leading to neurological damage. The incidence of these disorders is on the rise and persons with uncontrolled diabetes, hypertension and heavy smokers are more liable to [...]

Cerebral hemorrhage in the brain may be intracerebral, subarachnoid or intraventricular. The commonest cause of an intracerebral hemorrhage is rupture of an atheromatous artery in a person suffering from hypertension which in most of the cases is uncontrolled. Factor of degeneration of the cerebral blood vessels along with fluctuations of blood pressure levels account for most [...]

Cerebral embolism – Sudden occlusion of a cerebral vessel due to a thrombus arising from the carotid, artery or its branches or from a diseased heart constitutes the picture of cerebral embolism which develops suddenly with production of neurological signs. Common causes of cerebral embolism are: 1. Thrombosis arising from the right subclavian artery. 2. [...]