Delusional disorder of snake infestation â€“ A diagnostic dilemma
Keywords:Delusional infestation, Snake infestation, Parasitosis
Delusional infestation is a condition where one believes that he or she has a large parasitic infestation. We present a case with delusion of snake infestation as the only psychotic symptom without any primary psychotic or mood disorder. The site of infestation and the type of parasite involved makes it an unusual clinical presentation.
Winford S, Durand DM, Klise A, Caceda R. Delusion of Snake Infestation Following Sexual Intercourse: Report of Two Cases. International Journal of Emergency Mental Health and Human Resilience. 2015; Vol. 17 (3):624-625.
World Health Organization. ICD-10 Classifications of Mental and Behavioural Disorders: Clinical Descriptions and Diagnostic Guidelines. Geneva: World Health Organization. 1992;97-98.
American Psychiatric Association: Diagnostic and Statistical Manual of Mental Disorders. 5th Edition, Washington, DC, American Psychiatric Publishing; 2013:90-93.
Srinivasan TN, Suresh TR, Jayaram V, Fernandez MP. Delusional parasitosis of body orifices - a cultural variant? Indian J Psychiatry. 1993 Oct;35(4):218-20.
Kakunje A, Ammati R, Tolar P, Puthran S, Swaroop M. Snakes and their relevance to psychiatry. Ann Indian Psychiatry. 2019; 3:63-6.
Munro A. Persistent Delusional symptoms and disorders. New Oxford Textbook of Psychiatry.2nd Ed. Vol 1. (Ed) Gelder MG, Andreason NC, Lopez â€“ibor Jr JJ, Geddes JR. Oxford University Press. New York; 2009: 609- 627.
Wilson JW, Miller HE: Delusion of parasitosis(acarophobia). Arch Dermatol Syphilol.1946;54:39-56.
Freudenmann RW, Lepping P. Delusional infestation. Clin Microbiol Rev. 2009 Oct;22(4):690-732.
Shah HM, Lahori M, Mehta P. Clinical presentation of delusion of parasitosis in a tertiary care center. Ann Indian Psychiatry 2019; 3:55-7.
Sawant NS. Delusional parasitosis revisited. Ann Indian Psychiatry 2019; 3:1-3.