Oesophagostomum causes
|
Oesophagostomum Microchapters |
|
Diagnosis |
|---|
|
Treatment |
|
Case Studies |
|
Oesophagostomum causes On the Web |
|
American Roentgen Ray Society Images of Oesophagostomum causes |
|
Risk calculators and risk factors for Oesophagostomum causes |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Causes
Morphology
Adult worms of all Oesophagostomum spp. exhibit a cephalic groove by its proximal gut as well as a visible secretory pore, or stomum, at the same level of the oesophagus19. Like other nematodes, Oesophagostomum spp. contain a developed, multi-nucleate digestive tract as well as a reproductive system. Their developed buccal capsule and club-shaped oesophagus are useful for distinguishing Oesophagostomum spp. from hookworms.[1]
Both sexes of adults have a cephalic inflation and an oral opening lined with both internal and external leaf crowns. Female adults, which have a length range of 6.5–24 mm, are generally larger than their male counterparts, with a length range of 6-16.6 mm. Males can be distinguished by their bell-like copulatory bursa, located in the tail, and their paired rodlike spicules.[2]
Eggs are ovular in shape and range from 50 to 100 micrometres in size; they closely resembles those of hookworms, which renders diagnosis via stool analysis useless in areas co-infected with both Oesophagostomum and hookworm.[3]
References
- ↑ Elmes, B et al. (1953). Helminthic abscess, a surgical complication of oesophagostomes and hookworms. Annals of Tropical Medicine and Parasitology. 48: 1-7.
- ↑ Ziem, J.B. “Controlling human oesophagostomiasis in northern Ghana.” (Doctoral thesis) Leiden University. 2006. <https://openaccess.leidenuniv.nl/dspace/handle/1887/4917?mode=more>.
- ↑ Ziem, J.B. “Controlling human oesophagostomiasis in northern Ghana.” (Doctoral thesis) Leiden University. 2006.<https://openaccess.leidenuniv.nl/dspace/handle/1887/4917?mode=more>.