Narcolepsy is characterized by the classic tetrad of excessive daytime sleepiness, cataplexy, hypnagogic hallucinations, and sleep paralysis. Narcolepsy is a chronic disease of the central nervous system. Excessive daytime sleepiness , loss of muscle tone (cataplexy),distorted perceptions (hypnagogic hallucinations), and inability to move or talk (sleep paralysis).Narcolepsy usually begins in teenagers or young adults and affects both sexes equally.

It is laso known as Aniridia, Cerebella Ataxia, mental deficiency, Aniridia, Cerebella Ataxia, Mental Retardation,Partial Aniridia, Cerebella Ataxia, Mental Retardation,Partial Aniridia, Cerebella Ataxia, Oligophrenia

An ectopic pregnancy is a condition in which the fertilized ovum is implanted and develops outside the normal uterine cavity. It is one of the common cause for death of mother during pregnancy. Early diagnosis and treatment prevents maternal death.

Migraine headaches in children are common and are usually not serious, presenting as severe chronic daily headaches or stress related headaches located around the eyes, in the forehead region, or in the temples with sudden onset and accompanying symptoms of nausea, abdominal pain, vomiting, vision changes relieved by sleep which may be caused by an infection, high levels of stress or anxiety, or minor head trauma usually treated with over-the-counter pain medications and other lifestyle and home measures.

It is the liver injury in new borns inwhom the infectious and metabolic disease have been excluded. It is also called as idiopathic neonatal hepatitis. It is charecterized by presence of mulitnucleated gaint cells.