1/11. Paederus dermatitis: a report of 46 cases in Aydin, turkey.Paederus dermatitis is a specific form of acute irritant contact dermatitis caused by pederin, a secretion of insects of the genus Paederus. The disease is characterized by vesicles, bullae and sometimes small pustules on an erythematous base with sudden onset of a stinging, burning sensation. The dermatitis is most frequently seen in regions with a hot, tropical climate. We present 46 cases from Aydin, turkey, a province well known for its long hot summers. These are the first cases reported from this region. We would like to point out the possibility of Paederus dermatitis in regions with a similar climate and suggest that 'night burn' be included among other differential diagnoses of a grouped vesicular and/or pustular lesion on an erythematous base. copyright (R) 2000 S.Karger AG, Basel- - - - - - - - - - ranking = 1keywords = dermatitis (Clic here for more details about this article) |
2/11. A new member of the trombiculid mite family Neotrombicula nagayoi (acari: trombiculidae) induces human dermatitis.We present the first definitive evidence that the mite Neotrombicula nagayoi bites humans under natural conditions in japan. Initially, bites resulted in mild pruritus without pain. However, skin reactions increased gradually year by year with severe pruritus with pain being reported by the victim after being bitten repeatedly. Six species of trombiculid mites comprising three genera were isolated from soil samples collected from August to October in both 2001 and 2002 at a study site where a man was bitten by N. nagayoi. The dominant species was L. intermedium (72.4%) followed by L. pallidum (8.3%) and N. nagayoi (8.1%). N. nagayoi was found only in August and September. We did not detect the pathogen orientia tsutsugamushi in any of the unfed larvae, including N. nagayoi, collected from the soil samples.- - - - - - - - - - ranking = 0.5keywords = dermatitis (Clic here for more details about this article) |
3/11. Venomous bites to the external genitalia: an unusual cause of acute scrotum.The acute scrotum generates a long list of differential diagnoses. An unusual etiology includes insect envenomation, which typically is an acute process with rapid onset of symptomatologies. Two patients with genital envenomation are reported. We review the reported cases at our institution with all types of bites and stings. Symptoms of pain and pruritus, and signs of ecchymosis and edema preceding exfoliating dermatitis were evident in both cases. Mild analgesics and antihistamines promoted resolution in each instance.- - - - - - - - - - ranking = 0.125keywords = dermatitis (Clic here for more details about this article) |
4/11. thysanoptera dermatitis.thysanoptera dermatitis is caused by the bite of small (1-2 mm) insects (generally thrips). Thrips usually feed on the juices of vegetables but if they reach human skin they can suck the epidermal lymph after biting. The cutaneous lesions formed are small pink and itchy papules localized mainly on the trunk and the arms. diagnosis is only possible by demonstrating that the insect is present inside one of the lesions of the skin. thysanoptera dermatitis is often misdiagnosed as mosquito bites. Although self-resolving in a few days, thysanoptera dermatitis should be known not only for the cultural and scientific training of the dermatologist but also to add more detailed diagnostic information to the generic diagnosis of 'entomodermatosis' and to confirm the benign evolution of the bites.- - - - - - - - - - ranking = 0.875keywords = dermatitis (Clic here for more details about this article) |
5/11. life-threatening facial edema due to pine caterpillar mimicking an allergic event.BACKGROUND: Approximately 150 species of lepidoptera have been described as causing damage to human skin. One of these species is the pine processionary caterpillar, which is responsible for dermatitis, contact urticaria, ocular lesions and rarely respiratory signs and anaphylactic reactions through IgE-mediated or non-IgE-mediated mechanisms. We report a pediatric case of severe orofacial edema mimicking an allergic reaction after ingestion of a pine processionary caterpillar; urgent airway intubation was required. CASE REPORT: A 15-month-old boy was sleeping under a pine tree when his mother noted a pine caterpillar on his tongue. Because of rapidly developing facial swelling and respiratory distress, the infant was first taken to a local hospital where he received intravenous dexamethasone and pheniramine hydrogen maleate. On arrival at our emergency department, diffuse swelling and edema involving the tongue, perioral, nasal and perimandibular regions, and neck was noted, requiring urgent orotracheal intubation. There were no findings of anaphylaxis. The results of skin prick tests and specific IgE to common aero- and food allergens were negative. A skin prick test with extract of pine caterpillar was also negative. Prednisolone and pheniramine hydrogen maleate were administered for 7 days. The child gradually improved and was successfully extubated 4 days later. CONCLUSION: Although oral contact with a pine processionary caterpillar in the form of ingestion is rare, it may cause significant local reaction and airway compromise mimicking an allergic event. In this situation, early intubation to maintain airway patency is a life-saving measure.- - - - - - - - - - ranking = 0.125keywords = dermatitis (Clic here for more details about this article) |
6/11. acrodermatitis chronica atrophicans in association with lichen sclerosus et atrophicans: tubulo-interstitial nephritis and urinary excretion of spirochete-like organisms.We report about a 38-year-old male patient with coexisting acrodermatitis chronica atrophicans, lichen sclerosus et atrophicans and recurrent diabetic metabolic disorders since 9 years. Serologically IgG antibodies against borrelia burgdorferi could be detected. Moveless winded structures, morphologically resembling borreliae could be demonstrated in the urine sediment by dark field microscopy. Additionally a tubulo-interstitial nephritis was diagnosed by the presence of a dysmorphic hematuria, a pathological polyacrylamide gel electrophoresis and raised alpha 1- and beta 2-microglobulin in the urine. We suggest that the excreted spirochete-like structures are borreliae. They may be the putative infectious agent for the development of lichen sclerosus et atrophicans in the genital area.- - - - - - - - - - ranking = 0.625keywords = dermatitis (Clic here for more details about this article) |
7/11. Simulium dermatitis in man--clinical and biological features in south africa. A case report.Simulium bite reaction is described; the lesions were present mainly on the lower legs as palpable purpura, which persisted for 2 weeks with marked oedema and considerable discomfort. Simuliids are tiny bloodsucking flies, popularly known as blackflies or buffalo flies, belonging to the dipterous family simuliidae. They occur world-wide, breed in fast-flowing streams, and are a major animal pest. This is the first description of blackfly bites in man in the South African literature.- - - - - - - - - - ranking = 0.5keywords = dermatitis (Clic here for more details about this article) |
8/11. Season dermatitis ex insectis caused by stings of Sclerodermus domesticus.Case history of five members from the same family is reported. They developed papulourticarial pruritic rash on the skin of their torsos and extremities during their summer stay in an old family house. The cause was an insect determined as Sclerodermus domesticus, known for its parasitism on larvae of a wood pest. Examination of the furniture revealed a lot of holes typical for these pests. Cases of stings of these insects have not been described in yugoslavia till now.- - - - - - - - - - ranking = 0.5keywords = dermatitis (Clic here for more details about this article) |
9/11. A dermatitis-eosinophilia syndrome. Treatment with methylprednisolone pulse therapy.A 47-year-old man had a generalized, eczematous erythroderma and eosinophilia one week after a wasp sting. These changes persisted for four months despite intensive topical therapy and oral corticosteroids. He was then given corticosteroid pulse therapy with methylprednisolone sodium succinate (2 g, intravenously). One week later, a second pulse treatment was administered. This therapy was followed by permanent resolution of the dermatitis within two weeks.- - - - - - - - - - ranking = 0.625keywords = dermatitis (Clic here for more details about this article) |
10/11. An epidemic of caterpillar sting dermatitis in a rural west virginia community.During a five-week interval which began May 1991, 19 patients presented to a community health center in a rural west virginia community with a painful dermatitis. The dermatitis was caused by exposure to a single species of caterpillar, Hemileuca maia, larva of the buck moth. The caterpillars were apparently especially abundant during the period. epidemics of caterpillar stings rarely have been reported. No previous epidemics of stings by the buck moth caterpillar have appeared in the literature.- - - - - - - - - - ranking = 0.75keywords = dermatitis (Clic here for more details about this article) |
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