Matchbox sign

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Matchbox sign is a psychiatric finding. Patients with delusional parasitosis often arrive at the doctor's office with what healthcare professionals call the matchbox sign,[1] a medical sign characterized by the patient making collections of fibers and other foreign objects supposedly retrieved from the skin.[2] The name refers to the fact that such collections can be stored in matchboxes or other similar small containers, which are then presented to the patient's physician.[1]

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  1. ^ a b Koo, Lebwohl (2001-12-01). "Psychodermatology: The Mind and Skin Connection". American Family Physician. 64 (11). 
  2. ^ Dunn, J.; Murphy, M.B.; Fox, K.M. (2007). "Diffuse Pruritic Lesions in a 37-Year-Old Man After Sleeping in an Abandoned Building". Am J Psychiatry. 164 (8): 1166–1172. doi:10.1176/appi.ajp.2007.07030381. PMID 17671278.