The beginning of summer kicks off the camping and hiking season, anxiously awaited by those who have endured a long cold winter. This year will likely prove to be one of the busier camping seasons as many Americans bypass more expensive vacations that involve pricey airline tickets or gas guzzling road trips. Emergency department staff will probably see a greater number of people with contact dermatitis caused by exposure to poison ivy, poison oak or poison sumac. Many people have never seen poison ivy , or perhaps wouldn't recognize it if they saw it. Poison ivy, poison oak and poison sumac belong to the plant genus Toxicodendron (previously referred to as Rhus ). Toxicodendron means "poisonous tree." These plants have an oil-based substance in the resin on their leaves and in their stems and branches called urushiol that causes a delayed skin reaction in about 50% of people that contact it. Urushiol may cause severe contact dermatitis in people that have previousl...
Alternative Names Mastocytosis; Mastocytoma Symptoms The main symptom is brownish lesions on skin. Rubbing the skin sore causes a hive-like bump. Younger children may develop a fluid-filled blister if it is scratched. The face may also become flushed . In severe cases, the following symptoms may occur: Diarrhea Fainting (uncommon) Headache Rapid heartbeat ( tachycardia ) Signs and tests Skin biopsy to confirm an increase in the number of mast cells Urine histamine
Acrodermatitis is a childhood skin condition that may be accompanied by mild symptoms of fever and malaise . It may also be associated with hepatitis B and other viral infections.
Papular acrodermatitis of childhood; Gianotti-Crosti syndrome; Acrodermatitis - infantile lichenoid; Acrodermatitis - papular infantile; Papulovesicular acro-located syndrome; Acrodermatitis enteropathica
Causes, incidence, and risk factors
The cause of acrodermatitis is poorly understood, but its link with other infections is well- documented.
In Italian children, acrodermatitis is seen frequently with hepatitis B , but this link is rarely seen in the United States. Epstein-Barr virus (EBV, mononucleosis) is the virus most often associated with acrodermatitis. Other associated viruses inclcude, cytomegalovirus, coxsackie viruses, parainfluenza virus, respiratory syncytial virus (RSV), and some live virus vaccines.
A rare, genetic form of acr...
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