Paraphrenia was one of the last great inventions of classical psychiatry. Both the French school as the German school, have strongly discussed and tracked this clinical entity which is an intermediate form between paranoia and schizophrenia. First originally by Kahlbaum and then described by Kraepelin, the term will fall into oblivion after the appearance of the manual diagnosis DSM III, which will be listed under concepts so various as schizophrenia or delusional disorder chronic.

Presenting a case report of paraphrenia, we discuss around its nosography classification, its clinical presentation, its evolutionary process and possible differential diagnoses.

We ask ourselves whether current standardized textbooks, it is still possible to observe this rich clinical entity.