Prodromal obsessive-compulsive symptoms in a case of schizophrenia.

The relation between obsessive and/or compulsive symptoms and psychosis has been verified since the XIX century.1 At present, this relation presents in different ways. 2, 3 In the first place, individuals with psychosis who show obsessive-compulsive symptoms (OCS)4 and that can present at the onset of the disease (prodromes).5 In the second place, the OCS can occur within the context of a psychosis, and can overlap with psychotic phenomenology, thus representing a “frustrated form of psychosis”5 and 3) the OCS induced by neuroleptics.2 Finally, the OCS or obsessive-compulsive disorder (OCD)2 within an already established schizophrenia (the so-called schizo-obsessive syndrome”).6