Delusional versus nondelusional body dysmorphic disorder: recommendations for DSM-5

The core feature of body dysmorphic disorder (BDD) is distressing or impairing preoccupation with nonexistent or slight defects in one's physical appearance. BDD beliefs are characterized by varying degrees of insight, ranging from good (ie, recognition that one's BDD beliefs are not true) through “absent insight/delusional” beliefs (ie, complete conviction that one's BDD beliefs are true). The Diagnostic and Statistical Manual of Mental Disorders, 3rd ed., rev. (DSM-III-R) and The Diagnostic and Statistical Manual of Mental Disorders, 4th ed. (DSM-IV) classified BDD's nondelusional form in the somatoform section of the manual and its delusional form in the psychosis section, as a type of delusional disorder, somatic type (although DSM-IV allowed double-coding of delusional BDD as both a psychotic disorder and BDD). However, little or no evidence on this issue was available when these editions were published. In this article, we review the classification of BDD's delusional and nondelusional variants in earlier editions of DSM and the limitations of their approaches. We then review empirical evidence on this topic, which has become available since DSM-IV was developed. Available evidence indicates that across a range of validators, BDD's delusional and nondelusional variants have many more similarities than differences, including response to pharmacotherapy. Based on these data, we propose that BDD's delusional and nondelusional forms be classified as the same disorder and that BDD's diagnostic criteria include an insight specifier that spans a range of insight, including absent insight/delusional BDD beliefs. We hope that this recommendation will improve care for patients with this common and often-severe disorder. This increased understanding of BDD may also have implications for other disorders that have an “absent insight/delusional” form.

Olfactory reference syndrome - A case report

IntroductionOlfactory reference syndrome (ORS), first described by Pryse-Phillips in 1971, is a rare psychiatric condition whose defining characteristic is a preoccupation with the belief that one emits a foul or offensive body odor, which is not perceived by others. Although the existence of ORS is now widely accepted, current classifications do not explicitly mention ORS as an independent category, but consider it as a delusional disorder, somatic type. Nonetheless, given this syndrome's consistent description along time and cultures, and the associated substancial distress and disability, many authors debate the possibility of a new classification in order to establish its nosological status.Objectives/aimsThe aim of this paper is to show and discuss some troublesome and complex issues of diagnosis and management of patients with ORS.MethodsHerein we report a case of a 38-year-old woman who presented with ORS.Results/conclusionsImprovement in ORS can take place, in some extent, with a variety of different modalities of treatment, with the disorder responding to antidepressants and psychotherapy more frequently than to neuroleptics. Data on ORS are still limited and more research in this field is needed. Awareness of this particular diagnosis allows appropriate treatment to be administered.