Parasitic Diseases

Scott, Danny W.

doi:10.1016/b978-1-4377-0920-9.00006-8

Cited by 18 publications

(66 citation statements)

References 33 publications

(31 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The larvae were degenerated at the time the biopsy was performed, possibly as a result of the marked tissue eosinophilia induced by the parasite and the ivermectin dose given previously by the referring veterinarian. It is also possible that the larvae died spontaneously and the need for treatment could be questioned in this case 13 . However, the parasite caused a severe periocular inflammation and the marked pruritus experienced by the camel resulted in self‐inflicted trauma and secondary infection warranting treatment.…”

Section: Discussionmentioning

confidence: 95%

Cutaneous periocular Habronema infection in a dromedary camel (Camelus dromedarius)

Myers

Smith

Greiner

et al. 2010

Veterinary Dermatology

View full text Add to dashboard Cite

A 6-year-old castrated dromedary camel (Camelus dromedarius) presented with a non-healing, severely pruritic, ulcerative fibrotic plaque located at the medial canthus. Histological examination of surgical biopsies identified degenerating nematode larvae within eosinophilic granulomas. Treatment involved repeated debridement of the lesion, injectable ivermectin and anti-inflammatory therapies, and injectable and topical antibiotics. A specially constructed mask with goggles to prevent the camel from continuing to self-traumatize the eye and lesion was also placed. Full recovery occurred approximately 1 month after diagnosis. Because of the location of the lesion, time of year, the gross and microscopic characteristics of the lesion, the presence of a likely nematode larva and the response to treatment, a diagnosis of cutaneous habronemiasis was made.

show abstract

Section: Discussionmentioning

confidence: 95%

Cutaneous periocular Habronema infection in a dromedary camel (Camelus dromedarius)

Myers

Smith

Greiner

et al. 2010

Veterinary Dermatology

View full text Add to dashboard Cite

show abstract

“…Infection of periocular tissue by Habronema larvae is a well‐known cause of infectious conjunctivitis, blepharitis or dermatitis in tropical and subtropical climates 1 . Three nematode species, Habronema microstoma (synonym H majus ), H muscae and Draschia megastoma , have been identified as the cause of this disease 2 3 . The adult stages live in the equine stomach (gastric habronemiasis), which is usually asymptomatic 3 .…”

Section: Introductionmentioning

confidence: 99%

“…Three nematode species, Habronema microstoma (synonym H majus ), H muscae and Draschia megastoma , have been identified as the cause of this disease 2 3 . The adult stages live in the equine stomach (gastric habronemiasis), which is usually asymptomatic 3 . The adult female produces eggs in the stomach, which are passed in the faeces from where they are ingested by the maggots of various flies.…”

Section: Introductionmentioning

confidence: 99%

Case series: periocular habronemiasis in five horses in the Netherlands

et al. 2018

View full text Add to dashboard Cite

In tropical and subtropical climates, infection of periocular tissue by larvae is a recognised cause of conjunctivitis or blepharitis. To the authors' knowledge, only a few cases of habronemiasis have been described in Western Europe, and it has not been documented previously in the Netherlands. The objective of this report is to describe the occurrence of five cases of (peri)ocular habronemiasis in the Netherlands, of which four date from the past few years. The diagnosis was based on the history, clinical signs and histopathologic examination of biopsy specimens. A granulomatous conjunctivitis/dermatitis and sulphur-like granules were present in all cases. Histopathology showed an eosinophilic granulomatous inflammation, and three out of five (60 per cent) samples revealed one or more nematodes on section. Treatment combinations with surgical excision, local corticosteroid and/or anthelmintic drugs were used. Furthermore, all horses received ivermectin or moxidectin. Treatment resulted in healing of the lesions in four horses. One case, which was refractory to treatment, resolved spontaneously after the onset of colder weather. This case series suggests an increased prevalence of (peri)ocular habronemiasis in the Netherlands. This diagnosis should therefore be considered when being presented with a horse with granulomatous conjunctivitis/dermatitis in Western Europe, especially during the summer months.

show abstract

“…; Ural et al . ; Scott and Miller ). As events have come full circle and we recognise the potential hazards to the environment and the risk of creating parasite resistance with over use of endoparasiticides, worm egg counts and other diagnostic tests have been employed to establish if worming is needed rather than worming a horse as a matter of course.…”

mentioning

confidence: 99%

“…Even when mites cannot be identified on skin scrapings (as is the case in most animals); where there is a history of nonseasonal pruritus; foxes are known to be present in the environment and especially if there is evidence of owner contagion; empirical therapy should be considered as a diagnostic rule out. Current recommendations for therapy include 2% lime sulphur given at least on 2 occasions at 14 day intervals (Scott and Miller ); ivermectin orally at a dose of 0.2 mg/kg bwt on 2 occasions at 14 day intervals (Osman et al . ); or doramectin by i.m.…”

mentioning

confidence: 99%

Equine scabies an increasingly common problem? Do worm egg counts and a reduction in anthelmintic usage mean it will become even more of a problem in the future?

Paterson

2014

Equine Veterinary Education

View full text Add to dashboard Cite

Parasitic Diseases

Cited by 18 publications

References 33 publications

Cutaneous periocular Habronema infection in a dromedary camel (Camelus dromedarius)

Cutaneous periocular Habronema infection in a dromedary camel (Camelus dromedarius)

Case series: periocular habronemiasis in five horses in the Netherlands

Equine scabies an increasingly common problem? Do worm egg counts and a reduction in anthelmintic usage mean it will become even more of a problem in the future?

Contact Info

Product

Resources

About