In Scandinavia today we are confronted with four kinds of ectoparasites, that is, parasites that will stay on the body or in the skin for a relatively long period of time. These are as follows: Scabies, Pediculosis pubis, Pediculosis capitis, and Pediculosis corporis.
Short commentaries will be made about 'temporary' parasites, which sometimes cause considerable diagnostic problems: animal scabies - especially fox scabies, Cheyletiella infestation, fleas, mosquito bites and nodulus cutaneous, bee stings and wasp stings, caterpillar dermatitis. Some important comments will be made about a very special dermatological problem which is psychiatric in nature, delusion of parasitosis.
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