PARANOID PERSONALITY DISORDER. The paranoid personality disorder fascinates and worries health professionals, who are sometimes victims of aggressive claims from their patients. Overestimation of oneself, psychorigidity, distrust and relational hyperesthesia characterize the paranoid type of personality disorder. This disorder is often associated with co-morbidities which mask it and promote decompensation towards a delusional disorder with the risk of heteroaggressive acts or towards a severe depressive disorder with suicidal risk. On the basis of regular monitoring and exhaustive assesment, management requires rigor and balance in the sharing of information, the use of psychotropic drugs or hospitalization, if necessary, in compulsory care.