Grain drossB88.0
Synonym(s)
acrodermatitis urticarioides; Barley disease; Barley dross; Pyemotes dermatitis; Pyemotes-tritici dermatitis
DefinitionThis section has been translated automatically.
Worldwide infection with puffer mites (Pyemotes tritici; grain itch mite; straw itch mite) on contact with grain, bean plants or straw. Strawflower beds are known to be the starting point of small endemics.
PathogenThis section has been translated automatically.
Pyemotidae. Pyemotes species are 0,3 mm mites whose natural end hosts are storage pests, e.g. grain moths. Man is a false host, as in the case of trombidiosis.
LocalizationThis section has been translated automatically.
Especially at the immediate contact points (arms, neck, back).
Clinical featuresThis section has been translated automatically.
A few hours after exposure: severe pruritus, wheal formation, possible papulo-vesicular or purple transformation, decrease within 14 days General symptoms such as fever, tachycardia, lymph node enlargement, oedema, proteinuria, eosinophilia, asthma possible.
TherapyThis section has been translated automatically.
Since humans are false hosts, the mites remain on the human body for only a few hours to days. Therefore, the treatment is symptomatic. It is important to show the connection between the Pyemotes tritici mites and the skin symptoms. The sources of infection are to be avoided.
External therapyThis section has been translated automatically.
E.g. with Lotio alba aq. or glucocorticoid-containing emulsion such as 1% hydrocortisone emulsion R123.
Internal therapyThis section has been translated automatically.
Antihistamines if necessary.
LiteratureThis section has been translated automatically.
- Grob M, thorn K, lute beater S (1998) Grain dross. A small epidemic by Pyemotes species. dermatologist 49: 838-843
- Uenotsuchi T et al (2000) Pyemotes dermatitis caused by indirect contact with husk rice. Br J Dermatol 143: 680-682