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"Sign of the kiss" in dermatitis caused by vesicant beetles ("potós" or Paederus sp.).

Haddad Junior V - An Bras Dermatol (2014 Nov-Dec)

Bottom Line: There may be a burning sensation and severe conjunctivitis.Lesions disappear after 10 days and may leave hyperchromic macules.Treatment is made with topical corticosteroids and intensive washing.

View Article: PubMed Central - PubMed

Affiliation: Sao Paulo State University Julio de Mesquita Filho, Botucatu, SP, Brazil.

ABSTRACT
The cosmopolitan beetles of the Paederus genus (potós) cause a severe dermatitis when the insect is crushed against the skin of exposed areas (the cervical region is the most affected). Toxins (pederin and others) from the hemolymph of the insect cause plaques and/or bizarre, linear lesions with erythema, edema, blisters, pustules, crusts and exulcerations. There may be a burning sensation and severe conjunctivitis. Lesions disappear after 10 days and may leave hyperchromic macules. Treatment is made with topical corticosteroids and intensive washing.

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Vesicant lesions in an area of healthy skin juxtaposed to damaged skin, whichreproduces the lesions
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f02: Vesicant lesions in an area of healthy skin juxtaposed to damaged skin, whichreproduces the lesions

Mentions: The Paederus beetles or "potós" cause a severe dermatitis, especially inwarm climate such as the Midwest and Northeast Brazil (Figure 1).2,3 These insects are cosmopolitan and were first associatedwith vesicular dermatitis by Pirajá da Silva in Brazil.4 The animal is crushed against the skin of exposed areas (the cervicalregion is the most affected) and toxins (such as pederin and others), which are present inthe hemolymph of the insect, cause plaques and/or linear lesions with erythema, edema,blisters, pustules, crusts and exulcerations. There may be a burning sensation and severeconjunctivitis. Distribution is bizarre. Lesions disappear after about 10 days and mayleave hyperchromic macules. In skin folds, the "sign of the kiss" can occur in an area ofhealthy skin juxtaposed to damaged skin. Vesicant lesions are reproduced due the contactwith the toxins (Figure 2).


"Sign of the kiss" in dermatitis caused by vesicant beetles ("potós" or Paederus sp.).

Haddad Junior V - An Bras Dermatol (2014 Nov-Dec)

Vesicant lesions in an area of healthy skin juxtaposed to damaged skin, whichreproduces the lesions
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4230675&req=5

f02: Vesicant lesions in an area of healthy skin juxtaposed to damaged skin, whichreproduces the lesions
Mentions: The Paederus beetles or "potós" cause a severe dermatitis, especially inwarm climate such as the Midwest and Northeast Brazil (Figure 1).2,3 These insects are cosmopolitan and were first associatedwith vesicular dermatitis by Pirajá da Silva in Brazil.4 The animal is crushed against the skin of exposed areas (the cervicalregion is the most affected) and toxins (such as pederin and others), which are present inthe hemolymph of the insect, cause plaques and/or linear lesions with erythema, edema,blisters, pustules, crusts and exulcerations. There may be a burning sensation and severeconjunctivitis. Distribution is bizarre. Lesions disappear after about 10 days and mayleave hyperchromic macules. In skin folds, the "sign of the kiss" can occur in an area ofhealthy skin juxtaposed to damaged skin. Vesicant lesions are reproduced due the contactwith the toxins (Figure 2).

Bottom Line: There may be a burning sensation and severe conjunctivitis.Lesions disappear after 10 days and may leave hyperchromic macules.Treatment is made with topical corticosteroids and intensive washing.

View Article: PubMed Central - PubMed

Affiliation: Sao Paulo State University Julio de Mesquita Filho, Botucatu, SP, Brazil.

ABSTRACT
The cosmopolitan beetles of the Paederus genus (potós) cause a severe dermatitis when the insect is crushed against the skin of exposed areas (the cervical region is the most affected). Toxins (pederin and others) from the hemolymph of the insect cause plaques and/or bizarre, linear lesions with erythema, edema, blisters, pustules, crusts and exulcerations. There may be a burning sensation and severe conjunctivitis. Lesions disappear after 10 days and may leave hyperchromic macules. Treatment is made with topical corticosteroids and intensive washing.

Show MeSH
Related in: MedlinePlus