personality disorder cluster A personality disorder http://purl.bioontology.org/ontology/MEDDRA/10034730 http://purl.bioontology.org/ontology/SNOMEDCT/16805009 https://en.wikipedia.org/wiki/Category:Cluster_A_personality_disorders Cluster A personality disorders are often associated with schizophrenia: in particular, schizotypal personality disorder shares some of its hallmark symptoms, e.g., acute discomfort in close relationships, cognitive or perceptual distortions, and eccentricities of behavior, with schizophrenia. cluster A personality disorders personality disorder with eccentric behavior