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Case 13: - Trichotillomania and Excoriation Disorder

from Part 1: - Vignettes

Published online by Cambridge University Press:  04 September 2025

Howard CH Khoe
Affiliation:
National Psychiatry Residency Programme, Singapore
Cheryl WL Chang
Affiliation:
National University Hospital, Singapore
Cyrus SH Ho
Affiliation:
National University Hospital, Singapore
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Summary

Chapter 13 covers the topic of trichotillomania and excoriation disorder. Through a case vignette with topical MCQs for consolidation of learning, readers are brought through the diagnosis and treatment of a patient with trichotillomania and excoriation disorder. topics covered inlcude diagnosis, co-morbidities and management.

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References

World Health Organization. International classification of diseases, 11th edition (ICD-11). Geneva: World Health Organization; 2024. Available from: https://icd.who.int/enGoogle Scholar
Grant, JE, Redden, SA, Medeiros, GC, Odlaug, BL, Curley, EE, Tavares, H, et al. Trichotillomania and its clinical relationship to depression and anxiety. Int J Psychiatry Clin Pract. 2017 Nov;21(4):302–6.CrossRefGoogle ScholarPubMed
American Psychiatric Association. Diagnostic and statistical manual of mental disorders, 5th edition, text revision (DSM-5-TR). Washington, DC: American Psychiatric Association Publishing; 2022. Available from: www.psychiatry.org/psychiatrists/practice/dsmGoogle Scholar
Boland, RJ, Verduin, ML, Ruiz, P, Shah, A, Sadock, BJ, editors. Kaplan & Sadock’s synopsis of psychiatry, 12th edition. Philadelphia: Wolters Kluwer; 2022.Google Scholar
Grant, JE, Chamberlain, SR. Trichotillomania and skin-picking disorder: an update. Focus (Am Psychiatr Publ). 2021 Oct;19(4):405–12.Google ScholarPubMed
Grant, JE, Chamberlain, SR. Automatic and focused hair pulling in trichotillomania: valid and useful subtypes? Psychiatry Res. 2021 Dec;306:114269.10.1016/j.psychres.2021.114269CrossRefGoogle ScholarPubMed

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