Abstract: Ekbom's syndrome is infestation of insects but here a delusion is seen where the patient believes that he has sand in his mouth which is not seen, but felt. Delusional parasitosis is characterised by a belief that the person is infested with insects in his body. Sometimes the patient may believe that his surroundings are infested with insects. Repeated treatments will not satisfy the patient. A 78 year old male, with no history of any underlying medical or neurological cause presented with complaints of having mud in his mouth which resulted in frequent visits to the orthodontist due to the same complaint and drastic measures to arrest the same. Atypical presentation of the disorder best suiting the diagnostic criteria of delusional disorder. Inter-disciplinary management approach for the same.
Key Word: Delusional Parasitosis, Delusion of infestation, Ekbom's Syndrome
[1]. Brownstone N, Howard J, Koo J. Management of delusions of parasitosis: an interview with experts in psychodermatology. Int J Womens Dermatol. 2022 Jul 8;8(3):e035. doi: 10.1097/JW9.0000000000000035. PMID: 35822193; PMCID: PMC9270601.
[2]. Reich A, Kwiatkowska D, Pacan P. Delusions of Parasitosis: An Update. Dermatol Ther (Heidelb). 2019 Dec;9(4):631-638. doi: 10.1007/s13555-019-00324-3. Epub 2019 Sep 13. PMID: 31520344; PMCID: PMC6828902.
[3]. Freudenmann, R.W. and Lepping, P., 2009. Delusional infestation. Clinical microbiology reviews, 22(4), pp.690-732
[4]. Lepping, P., Huber, M. and Freudenmann, R.W., 2015. How to approach delusional infestation. bmj, 350.
[5]. Hinkle NC. Ekbom syndrome: the challenge of "invisible bug" infestations. Annu Rev Entomol. 2010;55:77-94. doi: 10.1146/annurev.ento.54.110807.090514. PMID: 19961324.
[6]. Boggild, A.K., Nicks, B.A., Yen, L., Van Voorhis, W., McMullen, R., Buckner, F.S. and Liles, W.C., 2010. Delusional parasitosis: six-year experience with 23 consecutive cases at an academic medical center. International Journal of Infectious Diseases, 14(4), pp.e317-e321..