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Query: UMLS:C0851341 (infestation)
 10,121 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Scabies is a skin infestation of a mite which is spread by skin-to-skin contact and causes an intense generalized intractable pruritus. This case presentation demonstrates how scabies can be mistaken for other skin conditions, and the importance of proper diagnosis, treatment, and followup.
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PMID:Scabies: case presentation. 932 83

Spasticity is a common feature of spinal cord injury (SCI). Spasticity exacerbation is commonly encountered with nociceptive and exteroceptive stimuli including bladder and bowel dysfunction, pressure sores, contracture, tight-fitting leg bags and clothing, and ingrown toenail. This report describes a patient with chronic SCI (T4 level) who complained of increasing spasticity of bilateral lower extremities for 5 weeks. He also had skin lesions on different parts of his body, accompanied by itching above the spinal cord lesion level. A clinical diagnosis of scabies was made and pharmacologic treatment was initiated. Following treatment, spasticity was significantly reduced and the skin rash with itching faded out. This report is the first of scabies skin infestation lesions triggering exacerbation of spasticity in an SCI patient.
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PMID:Increased spasticity in a chronic spinal cord injury patient after scabies infestation: a case report. 942 96

A 3-year-old girl presented with recurrent urticarial eruptions presumed due to infestation of her garden with Euproctis edwardsi, Euproctis edwardsi, the mistletoe browntail moth is a variety of hairy caterpillar widely distributed in south-eastern Australia. They are often called 'woolly bears' by children. These caterpillars possess barbed hairs that fragment readily and are difficult to extract from the skin in one piece. Itching urticarial wheals and papular eruptions can follow contact with the caterpillars or their detached hairs. The hairlets may be identified by microscopy from skin scrapings and can be removed by tape stripping or with the aid of fine forceps. The skin lesions are treated symptomatically with calamine lotion, sodium bicarbonate solution and antihistamines. Infestation with Euproctis edwardsi can be minimized by removal of mistletoe from eucalyptus trees and by spraying affected areas with white oil or carbaryl 0.1%.
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PMID:Caterpillar dermatitis. 943 13

This study examined the relationships among louse density, pruritus and dermal response to insect antigens in sheep infested with Bovicola ovis. Polypay and Columbia ewes were allocated to two groups, infested and naive, and louse densities and pruritus were monitored for 15 months. Ten months after the initial infestation, all sheep were tested for hypersensitivity on the midside and ears by intradermal injection of soluble extracts of B. ovis, Stomoxys calcitrans and Musca autumnalis. The areas of skin reactions were measured at 20 min, 1, 3 and 24 h after injection and skin thickness was measured at 24 h. Louse densities on Polypays were approximately 10 times greater than on Columbias, and pruritus was correlated with louse numbers at most inspections. Most pruritic behaviour was directed to the sides of infested sheep. Wheal and flare reactions developed rapidly to all extracts in both infested and naive ewes. Reactions to louse extract were larger in infested than naive sheep at all four times after injection. In the infested Polypays, reactions to louse extract were greater than to the fly extracts, but in naive sheep there was little difference among extracts. Reactions in naive Columbias were larger than in naive Polypays at 20 min, 1 and 3 h, but had almost completely abated in both groups at 24 h. Reactions in infested Columbias were greater than in infested Polypays at 20 min, but at 24 h reactions in the Polypays were larger. Louse numbers and pruritus were correlated with wheal areas and skin thickness at 24 h, but there was little relationship with the size of reactions at earlier times. These findings are consistent with the development of a hypersensitive response to B. ovis and suggest that dermal reactions to lice may influence sheep susceptibility.
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PMID:Pruritus and dermal response to insect antigens in sheep infested with Bovicola ovis. 955 60

We report a case of myiasis caused by larvae of Dermatobia hominis in a 12-year-old boy. The infestation was acquired in Uruguay and was characterized by a single, large, inflammatory, nodular lesion located on the scalp. The lesion was accompanied by local pruritus and pain as well as diffuse headache and regional lymphadenopathy. From the lesion a single larva in stage III, of noteworthy size, was removed. Very few pediatric cases of myiasis due to D. hominis have been reported in the literature. Furthermore, as far as we know, just one adult case of myiasis caused by D. hominis acquired in Uruguay has been published.
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PMID:Cutaneous myiasis caused by Dermatobia hominis. 957 94

Thelazia is a nematode (Spirurida) that can parasitize the mammalian conjunctival sac. This is the first reported case of ocular. Thelazia callipaeda infestation in Taiwan. A 41-year-old woman experienced swelling, itching sensation and occasional blurred vision of the right eye 2 weeks after a small group of flies swarmed her eye while she was hiking. Her symptoms were first misdiagnosed as allergic conjunctivitis at a local medical clinic. During her first visit to our outpatient department, five white thread-like living worms were discovered on the superior and inferior fornices. The worms were cream-colored, slender and approximately 1 cm in length. Follicular and papillary conjunctivitis was noted in her right eye. After removing the worms, the symptoms resolved and no other worms were found in the following 2 months. This case is a remainder to physicians that parasitic infestation should be included in the differential diagnoses of ocular itching, conjunctivities, and blurred vision after insect contact.
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PMID:Conjunctivitis caused by Thelazia callipaeda infestation in a woman. 965 Apr 73

Pyemotes mites, of which the grain itch mite is the most important for human medicine, are ectoparasites of many insect species. Human infestation occurs only accidentally and temporally. The source materials are most often grain, straw and plant-based foods. Bites produce an intensely itching urticarial wheal capped by pin-point vesicles, which often are destroyed by scratching. Pyemotes dermatitis favours the back, the abdomen and the flexor side of the forearms. The mites are barely visible to the naked eye and reside only briefly on humans and thus are not found by physicians during clinical examination. When itching starts, the parasites have usually left their hosts. Therefore it is important to investigate the patient's environment and to identify the infested materials. We describe an outbreak of Pyemotes dermatitis in at least 16 persons, most of them warehouse workers in a hobby mail-order house. Infested decorative wheat was the source of the problem. Successful eradication was achieved by fumigation of the storage facilities with the insecticide methylbromide. Our cases demonstrate the importance of examination of environmental specimens for ectoparasites in cases of unexplained dermatoses. Biological agriculture avoiding insecticides may cause reappearance of this almost forgotten skin disease.
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PMID:[Grain mites. A small epidemic caused by Pyemotes species]. 987 83

We here report the case of a storage mite, Sancassania berlesei, infestation in the external auditory canal of a 46-yr-old male. He complained of feeling a foreign body and itching in the left external auditory canal for 1 mo, with accompanying otalgia for 3 days. Considering the duration of the patient's complaint and the 8-9-day life cycle of the mite, the mites are believed to have lived in the patient's ear for more than 3 generations.
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PMID:An infestation of the mite Sancassania berlesei (Acari: Acaridae) in the external auditory canal of a Korean man. 1020 79

A one-year-old male, chequered giant rabbit had a simultaneous infestation with both Leporacarus gibbus and Spilopsyllus cuniculi. Recurrent episodes of mild to severe pruritus had been noted over a period of two months. On clinical examination, partial alopecia and slightly erythematous skin with flea faeces was evident, although microscopic and cultural examinations of skin scrapings were negative for fungi. Parasitological examination, including adhesive tape strips of the rabbit's skin and fur, revealed L gibbus surface dwelling mites and the rabbit flea S cuniculi. The rabbit was successfully treated against both parasites with topical pyrethrin applied three times over a three-week period, and the clinical signs resolved in four weeks.
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PMID:Leporacarus gibbus and Spilopsyllus cuniculi infestation in a pet rabbit. 1038 65

A case of furuncular myiasis of the breast due to infestation by the larva of Cordylobia anthropophaga in a young lady is presented. Some of the physical presentations of Cordylobia anthropophaga mastitis are similar to those of carcinoma of the breast. High index of suspicion in endemic areas, including patients who had visited such areas, the characteristic intense itching of the affected breast, the use of the magnifying hand lens and subsequent extraction of the offending maggots are the invaluable aids to diagnosis and treatment. The ulcer left on the breast after extraction of the maggot should be biopsied and the associated ill defined mass and skin changes must be seen to resolve completely before carcinoma of the breast can be safely ruled out. The various methods of extraction and the preventive measures are highlighted. Though furuncular myiasis has been reported to involve every part of domestic animals, this is the first reported case in literature involving the human breast.
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PMID:Cordylobia anthropophaga mastitis mimicking breast cancer: case report. 1044 36


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