<unk>  describes a medical condition where a part of the<unk>  becomes inflamed and causes symptoms that present as fever. The terminology is dated and is encountered most often in Victorian literature, where it typically describes a potentially life-threatening illness brought about by a severe emotional upset.
Brain fever
Japanese encephalitis
Tick-borne encephalitis
Eastern equine encephalitis
Fungal meningitis
Herpesviral meningitis
Tomato fever
Mollaret's meningitis