<unk>  (also known as melancholic personality disorder) is a psychiatric diagnosis that denotes a personality disorder with<unk>  features. Originally included in the American Psychiatric Association's DSM-II,<unk>  was removed from the DSM-III and DSM-III-R. Recently, it has been reconsidered for reinstatement as a diagnosis.<unk>  is currently described in Appendix B in the DSM-IV-TR as worthy of further study. Although no longer listed as a personality disorder, the diagnosis is included under the section “personality disorder not otherwise specified”. While<unk>  shares some similarities with mood disorders such as dysthymia, it also shares many similarities with personality disorders including avoidant personality disorder. Some researchers argue that<unk>  is sufficiently distinct from these other conditions so as to warrant a separate diagnosis.
Depressive personality disorder
Borderline personality disorder
Organic personality disorder
Personality disorder not otherwise specified
Dependent personality disorder
Histrionic personality disorder
Bipolar I disorder
Schizoid personality disorder