Paederus dermatitis is a distinct variant of acute irritant contact dermatitis caused by mucocutaneous contact with the specific toxin of an insect belonging to the genus Paederus. It is characterized by the sudden onset of erythema and vesiculobullous lesions on exposed skin, with special predilection for the periorbital region. Paederus species have been mostly identified in Africa, Asia, Australia, and Central/South America. We report a 51-year-old woman who experienced 4 recurrences of periorbital erythema and edema in the previous year. No consistent etiology could be established at the beginning. Only after taking a detailed medical history was it discovered that 1 year before our examination, the patient had traveled to Kenya, where she had experienced contact with the insect. This fact led us to the diagnosis of Paederus dermatitis. After appropriate treatment, a complete regression was observed over a 3-week period.
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Paederus Dermatitis: Two Outbreaks of an Entomologic Disease in Austere Expeditionary Care.
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Paederus dermatitis, also known as dermatitis linearis, is an acute cutaneous condition caused by contact with the potent vesicant toxin paederin, produced by endosymbiotic Pseudomonas-like bacteria within Paederus spp. beetles. Paederin is a protein synthesis inhibitor that halts cell division, leading to vesiculation and necrotic breakdown of the epidermis.
View Article and Find Full Text PDFArticle Synopsis
- - Paederus contact dermatitis is a skin condition caused by beetles from the Paederus genus, which release a harmful toxin called paederin, commonly found in hot climates and during rainy seasons.
- - Symptoms include red patches with blisters on the skin, often accompanied by burning and itching, as demonstrated by a case of a 28-year-old male who developed lesions after vacationing in Ecuador.
- - Treatment involves washing the affected area, using topical steroids, and antihistamines; in the reported case, the patient improved significantly after 8 days, although some dark spots remained after the lesions healed.
Morphological and Clinical Patterns of Paederus Dermatitis.
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Background The objective of the present study was to describe the morphological and clinical patterns of paederus dermatitis (PD). Methodology This retrospective case series was conducted in the outpatient department of the Department of Dermatology, Srinivasan Medical College and Hospital, Trichy, Tamil Nadu, between June 2023 and August 2023 among patients with a clinical diagnosis of PD. Results This study included a total of 10 patients.
View Article and Find Full Text PDFA bedside diagnostic tool in acute vesicular lesions: A case report of Tzanck smear use in Paederus dermatitis.
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