Description

Pyemotes ventricosus is a tiny mite that can cause an occupational dermatitis.


Synonym: grain itch mite, straw itch mite, hay itch mite

 

Risk factors:

(1) occupational exposure to agricultural products (grains, straw, herbs)

(2) lack of fumigant or other pest control measure

(3) exposure during the summer

 

Clinical features:

(1) pruritic dermatitis with erythematous base, primarily on hands and forearms

(2) flu-like illness

 

Laboratory findings:

(1) microscopic examination for mites in implicated products and/or tape test of affected skin

 

Differential diagnosis:

(1) allergic contact dermatitis


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