<unk>  is an acute inflammation of the brain, commonly caused by a viral infection. It may present as focal or diffuse neurological manifestations. The signs may include altered mental status, change in personality, meningismus, ataxia, seizures, and cranial nerve involvement. Stiff neck, due to the irritation of the meninges covering the brain, indicates that the patient has either meningitis or meningeoncephalitis.
Viral encephalitis physical examination
Viral meningitis physical examination
St. Louis encephalitis physical examination
Bacterial meningitis physical examination
Neoplastic meningitis laboratory tests
Japanese encephalitis physical examination
Brain abscess physical examination
Fungal meningitis physical examination