Papular urticaria and things that bite in the night

Abstract

Whether we are hiking in the back country or playing in our backyard, we run the risk of exposure to offending arthropods. Papular urticaria is a very common hypersensitivity reaction to the bites, stings, and contact with critters such as mites, ticks, spiders, fleas, mosquitoes, midges, flies, and even caterpillars. Children seem to be at greatest risk, although adults are also vulnerable. The classic presentation of papular urticaria includes recurrent pruritic papules or vesicles and varying degrees of local edema. Severity is often related to the host response to the salivary or contactant proteins. Our understanding of the immune mechanism continues to improve; however, our approach to therapy has remained essentially unchanged. Although this review admittedly reaches beyond papular urticaria, it is with the intention of improving the reader's recognition of the offending arthropods, the characteristics of reactions, and the current therapeutic approaches.

Papular Urticaria: A Known Early Indicator of Atopic Dermatitis

“…Papular urticaria also known as insect bite hypersensitivity develops as a result of a hypersensitivity reaction to the bites of arthropods such as mites, mosquitoes, fleas, spiders, ticks, caterpillars and bed bugs 2 . Children, non-locals, adult males and individuals from urban and periurban areas are more prone to develop papular urticaria 3 .The insect depends on the geographic area of the patient 4 .…”

Systemic Immediate Allergic Reactions to Arthropod Stings and Bites

“…The phylum Arthropoda is by far the largest in the animal kingdom and includes approximately 1.5 million species which account for approximately 80% of all known animal species [4]. They encompass four principal classes, namely Crustacea e.g.…”

“…Hypersensitivity reactions from arthropods include the following symptoms and signs or illnesses [3, 4, 6, 7]. …”

“…Infiltration of mononuclear cells has been found on days 2–3. In some studies also deposits of complement components and immunoglobulins have been found [4]. Local papular reactions from midge stings are very common, but also bullous and hemorrhagic lesions may be observed [6].…”

¿Es posible simplificar el abordaje diagnóstico de urticaria crónica? Una lista de verificación de información clínica

“…-Picadura de insecto: mosquitos, moscas, pulgas, chinches, garrapatas (urticaria aguda, ocasionalmente crónica). 35 -Contacto: látex, níquel, animales, cocción al vapor, perfumes, polen (urticaria crónica).…”