1/23. Treatment of rosacea-like demodicidosis with oral ivermectin and topical permethrin cream.A 32-year-old man presented with a chronic rosacea-like dermatitis of the facial skin and the eyelids. The skin disorder had been present for 4 years and was unresponsive to multiple previous treatment attempts. skin scrapings and a histologic examination of a biopsy specimen from the affected area revealed the presence of numerous Demodex mites. The patient was treated with oral ivermectin and subsequent topical permethrin resulting in complete and rapid clearing of the folliculitis. We believe that this case supports the view that Demodex mites may be pathogenic when they are present in large numbers. Oral treatment with 200 microg/kg ivermectin with subsequent weekly topical permethrin showed impressive treatment efficacy in a case refractory to conventional treatment.- - - - - - - - - - ranking = 1keywords = dermatitis (Clic here for more details about this article) |
2/23. Avian mite dermatitis.Avian mite infestation is a rare cause of pruritic dermatoses in humans. The mites spend the majority of their life cycle on the avian host but may be transmitted to man as a result of direct contact and also through airborne spread. We describe a case of infestation with the Northern Fowl Mite (Ornithonyssus sylviarum) from an abandoned birds nest in the roof of a patients home. This caused a pruritic erythematous papular eruption on exposed sites that settled with topical steroids. We discuss the diagnosis and range of clinical manifestations produced by avian mites.- - - - - - - - - - ranking = 4.0001932179648keywords = dermatitis, contact (Clic here for more details about this article) |
3/23. Avian mite dermatitis.A case of dermatitis caused by the Northern fowl mite is presented. Fowl mites and their clinical significance are discussed.- - - - - - - - - - ranking = 5keywords = dermatitis (Clic here for more details about this article) |
4/23. Avian mite bites acquired from a new source--pet gerbils: report of 2 cases and review of the literature.BACKGROUND: Cutaneous manifestations of avian mite bites are not well recognized by physicians or patients. Clinical signs and symptoms are usually caused by bites from avian mites that have infested domestic poultry or birds nesting in or near human habitation. This report details 2 cases of pruritic papules acquired from avian mites that had infested pet gerbils and reviews the dermatologic literature about avian mites. OBSERVATIONS: An 11-year-old boy and an unrelated 10-year-old girl each had mysterious, pruritic papules for many months before their pet gerbils were found to be infested with Ornithonyssus sylviarum (the northern fowl mite) and Dermanyssus gallinae (the chicken mite), respectively. Symptoms resolved when the gerbils were removed from the home. CONCLUSIONS: Because infestation of pet gerbils with avian mites has never been reported, cases of avian mite bites and dermatitis may have gone unrecognized or misdiagnosed. Inquiry about ownership of pet gerbils may be helpful in patients with mysterious bites.- - - - - - - - - - ranking = 1keywords = dermatitis (Clic here for more details about this article) |
5/23. First report of a parasitic mite, Leptotrombidium (Hypotrombidium) subquadratum (Lawerence) (acari: trombiculidae: Trombiculinae), from dogs and children in the Bloemfontein area, south africa.Leptotrombidium subqunadratum larvae were collected for the first time in 1994 from dogs in Bloemfontein. The larvae have been collected annually, during the summer months, over a period of 6-7 years. Previously the only known hosts were scrub hare (Lepus saxatilis) (locality unknown) and short-snouted elephant shrew (Elephantulus brachyrhynchus) (Kruger National Park). These mites cause severe itching and dermatitis in humans and dogs.- - - - - - - - - - ranking = 1keywords = dermatitis (Clic here for more details about this article) |
6/23. rosacea-like demodicidosis in an immunocompromised child.Demodex folliculorum is a saprophytic mite of the human pilosebaceous unit. It is rarely found in children. It has been implicated in the development of follicular pityriasis, rosacea-like demodicidosis, pustular folliculitis, blepharitis, and granulomatous rosacea. We describe a 4-year-old boy who developed asymptomatic facial lesions that histologically corresponded to demodicidosis. He was in clinical remission of acute lymphoblastic leukemia and currently receiving maintenance chemotherapy. Exanthems related to D. folliculorum are rare in children. Most cases occur in immunocompromised patients and the clinical and histologic findings are diverse. A differential diagnosis should be established with rosacea and perioral dermatitis. The role of Demodex in the pathogenesis of these disorders is controversial. immunosuppression might increase the number of mites, favoring an inflammatory reaction, or there could exist an impaired cutaneous immunologic response to the parasites.- - - - - - - - - - ranking = 1keywords = dermatitis (Clic here for more details about this article) |
7/23. Pet hamsters as a source of rat mite dermatitis.Rat mite dermatitis is characterized by pruritic papules in a patient exposed to the tropical rat mite Ornithonyssus bacoti. We report a case of a woman with rat mite dermatitis who developed this eruption after exposure to her pet hamster. mites were collected from the hamster and identified as O bacoti. Reported sources of rat mites, as well as avian mites and other mites that bite humans, are reviewed.- - - - - - - - - - ranking = 6keywords = dermatitis (Clic here for more details about this article) |
8/23. Pyemotes herfsi (Oudemans, 1936) as causative agent of another mass dermatitis in europe (acari, Pyemotidae).The authors describe new cases of human dermatitis caused by Pyemotes herfsi occurring in the food mixing shed for the farrowing house in the piggery at a farm in the destrict of Olomouc, where seven persons handling feedstuff were infected. The disease became manifest as a papular rash, appearing particularly on the back, and all over the body except on the hands and face. When the afflicted person discontinued work in the feed mixing shed, the rash disappeared quickly. The mites were found in the granular dust accumulated in the loft above the food mixing shed. The initial host (insects) could not be identified. After cleaning and disinsecting the contaminated premises with Metation E 50 the workers were free from any symptoms. The mites of the genus Pyemotes, particularly the species P. herfsi (Oudemans, 1936) are little known, but probably frequent causative agents of human dermatitides.- - - - - - - - - - ranking = 5keywords = dermatitis (Clic here for more details about this article) |
9/23. Ornithonyssus (acari: Macronyssidae) mite dermatitis in poultry field-workers in Almarg, Qalyobiya governorate.Cutaneous manifestations of bird and rat mite infestation in man are not easily recognized by physicians or patients. Clinical signs and symptoms are developed secondary to bites of mites that have infested rats, domestic poultry or birds nesting in or near human habitation and comes into contact with man. This study details 4 cases of pruritic dermatitis developed in four field workers in poultry farms in Al-Marg district, Qalyobia governorate, egypt. The zoonotic species of Ornithoyssus sp., (family Macronyssidae) was isolated from all samples collected from patients' habitat and the role played by Ornithonyssus mites in causing dermatitis in man was discussed.- - - - - - - - - - ranking = 6.0001932179648keywords = dermatitis, contact (Clic here for more details about this article) |
10/23. An outbreak of rat mite dermatitis in an animal research facility.We describe an outbreak of rat mite dermatitis that affected 15 employees of an animal research facility. Cases of rat mite dermatitis are infrequently reported, and outbreaks are reported even less. Our case series demonstrates that in contrast to most prior outbreaks, rat mite dermatitis may occur even in modern, well-maintained physical surroundings and thus remains a relevant diagnosis today.- - - - - - - - - - ranking = 7keywords = dermatitis (Clic here for more details about this article) |
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