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October 1944


Author Affiliations


Arch Derm Syphilol. 1944;50(4):245. doi:10.1001/archderm.1944.01510160017007

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Although infestation with mites of the family Tyroglyphidae has long been recognized as a hazard in certain occupations (handling of cheese, copra, sugar, dried fruits and grains), it either occurs infrequently or is perhaps not diagnosed as such. Feeling that the latter view is the correct one and that the disease warrants fuller recognition, I wish to present my experiences with 2 cases encountered recently.

Tyroglyphidae is a family of the order Acarina, as is also Sarcoptidae. However, unlike Acarus scabiei, members of the family do not burrow into the skin. Their natural habitat is the substances mentioned. On man they cause an eruption, usually limited to the exposed surfaces, which cannot be distinguished morphologically from contact dermatitis of other causation. The history of contact with cheese, copra or one of the other substances mentioned and the demonstration of the parasite on the skin or in the suspected material

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