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Letters   |    
Delusional Infestation Responding to Blonanserin
M.S. Bhatia, M.D.; Anubhav Rathi, M.D.; Anurag Jhanjee, M.D.
The Journal of Neuropsychiatry and Clinical Neurosciences 2013;25:E54-E54. doi:10.1176/appi.neuropsych.12120400
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Dept. of Psychiatry, UCMS & GTB Hospital, Dilshad Garden, Delhi, India

Correspondence: Dr. M.S. Bhatia; e-mail:manbhatia1@rediffmail.com

Copyright © 2013 by the American Psychiatric Association


To the Editor: Delusional infestation is a type of thought disorder characterized by conviction of being infested by pathogens without any medical or microbiological evidence for this.1 It has also being described as delusional parasitosis, entomophobia, parasitophobia, Dermatozoenwahn, and Ekbom’s syndrome.13 This condition has occasionally been found to be associated with systemic conditions like pellagra, vitamin B12 deficiency, cerebrovascular disease, temporal lobe epilepsy, and leprosy.3,4 We describe here for the first time a patient with delusional infestation of the scalp, who responded to blonanserin, a new atypical antipsychotic.

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Sheppard  NP;  O’Loughlin  S;  Malone  JP:  Psychogenic skin disease: a review of 35 cases.  Br J Psychiatry 1986; 149:636–643
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Bhatia  MS;  Jhanjee  A;  Srivastava  S:  Delusional infestation: a clinical profile.  Asian J Psychiatry ; doi: 10.1016/j.ajp.2012.09.008
Lepping  P;  Russell  I;  Freudenmann  RW:  Antipsychotic treatment of primary delusional parasitosis: systematic review.  Br J Psychiatry 2007; 191:198–205
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