1/9. onchocerciasis presenting with lower extremity, hypopigmented macules.onchocerciasis, or river blindness, is a parasitic infection caused by the filarial nematode, onchocerca volvulus. It infects 18 million people worldwide, but is rarely seen in the united states. It is one of the leading causes of blindness in the developing world. Although onchocerciasis is also known as river blindness, it is not just a disease of the eyes, but rather a chronic multisystem disease. Clinically, onchocerciasis takes three forms: 1) eye disease; 2) subcutaneous nodules; and 3) a pruritic hypopigmented or hyperpigmented papular dermatitis. We present an 18-year-old African female with a 5-year history of asymptomatic, hypopigmented, slightly atrophic macules on her anterior tibiae. pathology revealed a scant perivascular inflammatory infiltrate with mononuclear cells, eosinophils, and rare microfilariae in the papillary dermis. ivermectin is the treatment of choice for onchocerciasis and was initiated in this patient. We present this interesting patient with onchocerciasis to expand our differential of hypopigmented macules, especially in the African population. In addition, we discuss both the diagnosis and the treatment of onchocerciasis in expatriate patients living in nonendemic areas.- - - - - - - - - - ranking = 1keywords = dermatitis (Clic here for more details about this article) |
2/9. Cercarial dermatitis contracted via contact with an aquarium: case report and review.Cercarial dermatitis ('swimmer's itch') is an itchy inflammatory response to the penetration of the skin by non-human schistosoma parasites. It is commonly contracted while swimming or wading in lakes. We report a biology teacher who developed the dermatitis after cleaning the school aquarium in which he kept a water snail and some fish.- - - - - - - - - - ranking = 6keywords = dermatitis (Clic here for more details about this article) |
3/9. schistosomiasis. paraplegia and ectopic skin lesions as admission symptoms.A 33-year-old man, who had been a teacher in africa from 1966 to 1969, was hospitalizaed in December 1973 for radiculomyelitis with progressive paraplegia and analgesia of the lower limbs. On his fourth day in the hospital, a pruritic, papular dermatitis appeared on both lower thoracic paraspinal areas. Microscopical examination of biopsy specimens of skin from those areas showed schistosome ova within many palisading granulomas in the dermis. The morphological features of the skin lesions, as seen by gross and microscopical examination, and the morphological and staining characteristics and the pathophysiology of the schostosome organism will be discussed. The longevity of the adult worm in the portal circulation is particularly important; a long interval may elapse between the time the patient leaves the area where he became infected and the time of appearance of the lesions.- - - - - - - - - - ranking = 1keywords = dermatitis (Clic here for more details about this article) |
4/9. Pelodera strongyloides infestation presenting as pruritic dermatitis.Pelodera strongyloides is a free-living soil nematode of the order rhabditida. We report an 18-year-old man with P strongyloides skin infestation. In this case, pruritic follicular papulopustules developed on the buttocks, then the right flank. skin scrapings revealed many live rhabditiform larvae that were cultured adult worms and hatched ova, identified as P strongyloides . The eruption was treated effectively with topical 1% gamma-hexachlorocyclohexane ointment.- - - - - - - - - - ranking = 4keywords = dermatitis (Clic here for more details about this article) |
5/9. Norwegian scabies in an infant with acquired immunodeficiency syndrome.A 6-month-old infant with acquired immunodeficiency syndrome (AIDS) and typical scabies subsequently developed Norwegian scabies, with deterioration of clinical status. The infestation spread to several health care workers who were in close contact with the patient, despite standard isolation precautions. In the rapidly growing hospitalized pediatric AIDS population, Norwegian scabies should be considered in the differential diagnosis of eczematous or seborrheic dermatitis.- - - - - - - - - - ranking = 1keywords = dermatitis (Clic here for more details about this article) |
6/9. Human dermatitis caused by a nymph of Sebekia.A case of dermatitis in a 31-year-old Costa Rican woman is described. From the lesion, a pentastomid nymph belonging to the genus Sebekia was obtained.- - - - - - - - - - ranking = 5keywords = dermatitis (Clic here for more details about this article) |
7/9. dermatitis due to larvae of a soil nematode, Pelodera strongyloides.A 6-month-old infant girl was seen because of failure to thrive and hyperpigmented papulonodules on the lower abdomen and thighs. Results of skin biopsy demonstrated dauer larvae of a soil nematode, Pelodera strongyloides, in the dermis. This is the second documented episode of human dermatitis due to this nematode, which more often invades the skin of dogs, cattle, horses, and sheep.- - - - - - - - - - ranking = 1keywords = dermatitis (Clic here for more details about this article) |
8/9. Outbreak of cercarial dermatitis in thailand.BACKGROUND. An epidemic of cercarial dermatitis caused by schistosoma spindale cercaria occurred in November 1988 in a district called Chaiya, Surajthani province, in Southern thailand. case reports. Fifty-eight Thai farmers in Chaiya, Surajthani gave a history of itch following immersion in water while planting rice. The area of rice field was flooded for 10 days before farmers started working. The duration of the disease ranged from 2 days to 1 month. Forty-one patients had the disease for the first time, seventeen had a history of previous manifestations. CONCLUSIONS. This epidemic was caused by S. spindale cercaria, which developed in the Indoplanorbis exustus snail, associated with flooding.- - - - - - - - - - ranking = 5keywords = dermatitis (Clic here for more details about this article) |
9/9. Tropical rat mite dermatitis: case report and review.Six medical students inhabiting a centuries-old, rat-infested house in Lubeck, in northern germany, were suffering from itching papules and seropapules. Prior to these patients' visit to our institute, their conditions had been diagnosed as pediculosis, scabies, or pulicosis and treated unsuccessfully with the antiparasitic agent lindane (0.3%). The final diagnosis, tropical rat mite dermatitis, was based on the identification of the arthropod Ornithonyssus bacoti, which has an unsegmented body with eight legs. No treatment was recommended, and the dermatitis disappeared within 2 weeks. Measures taken to prevent reinfestation included extermination of the rats and treatment of the rooms of the house with the acaricide benzyl benzoate. Because the mite O. bacoti spends a relatively short time on a host and penetrates the skin for feeding only, the application of an antiparasitic agent is not necessary. If indicated, treatment should be symptomatic.- - - - - - - - - - ranking = 6keywords = dermatitis (Clic here for more details about this article) |