Ascariasis causes: Difference between revisions
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==Gallery== | ==Gallery== | ||
<gallery> | <gallery> | ||
Image: Ascariasis01.jpeg| Magnified 128X, this photomicrograph revealed some of the ultrastructural features displayed by a fertile Ascaris lumbricoides egg. A. lumbricoides is the largest nematode (roundworm) parasitizing the human intestine. <SMALL><SMALL>''[http://phil.cdc.gov/phil/home.asp From Public Health Image Library (PHIL).] ''<ref name=PHIL> {{Cite web | title = Public Health Image Library (PHIL) | url = http://phil.cdc.gov/phil/home.asp}}</ref></SMALL></SMALL> | Image: Ascariasis01.jpeg| Magnified 128X, this photomicrograph revealed some of the ultrastructural features displayed by a fertile Ascaris lumbricoides egg. A. lumbricoides is the largest nematode (roundworm) parasitizing the human intestine. <SMALL><SMALL>''[http://phil.cdc.gov/phil/home.asp From Public Health Image Library (PHIL).] ''<ref name=PHIL> {{Cite web | title = Public Health Image Library (PHIL) | url = http://phil.cdc.gov/phil/home.asp}}</ref></SMALL></SMALL> | ||
Image: Ascariasis02.jpeg| Magnified 125X, this photomicrograph revealed the presence of a fertile Ascaris sp. egg that was found in an unstained formalin-preserved stool sample. See PHIL 411 for an example of an unfertilized Ascaris lumbricoides egg. <SMALL><SMALL>''[http://phil.cdc.gov/phil/home.asp From Public Health Image Library (PHIL).] ''<ref name=PHIL> {{Cite web | title = Public Health Image Library (PHIL) | url = http://phil.cdc.gov/phil/home.asp}}</ref></SMALL></SMALL> | |||
Image: Ascariasis03.jpeg| Depicted in this 1960 photograph were two Ascaris lumbricoides nematods, i.e., roundworms. The larger of the two was the female of the species, while the normally smaller male was on the right. Adult female worms can grow over 12 inches in length. <SMALL><SMALL>''[http://phil.cdc.gov/phil/home.asp From Public Health Image Library (PHIL).] ''<ref name=PHIL> {{Cite web | title = Public Health Image Library (PHIL) | url = http://phil.cdc.gov/phil/home.asp}}</ref></SMALL></SMALL> | |||
Image: Ascariasis04.jpeg| This micrograph reveals both fertilized (A) and unfertilized (B) Ascaris eggs, and a Trichuris egg (C); Mag. 125X. <SMALL><SMALL>''[http://phil.cdc.gov/phil/home.asp From Public Health Image Library (PHIL).] ''<ref name=PHIL> {{Cite web | title = Public Health Image Library (PHIL) | url = http://phil.cdc.gov/phil/home.asp}}</ref></SMALL></SMALL> | |||
Image: Ascariasis05.jpeg|This diagram depicts the various stages in the life cycle of the intestinal roundworm nematode Ascaris lumbricoides. <SMALL><SMALL>''[http://phil.cdc.gov/phil/home.asp From Public Health Image Library (PHIL).] ''<ref name=PHIL> {{Cite web | title = Public Health Image Library (PHIL) | url = http://phil.cdc.gov/phil/home.asp}}</ref></SMALL></SMALL> | |||
</gallery> | </gallery> | ||
==References== | ==References== | ||
Revision as of 16:53, 11 June 2015
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Ascariasis Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Ascariasis causes On the Web |
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American Roentgen Ray Society Images of Ascariasis causes |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: Imtiaz Ahmed Wani, M.B.B.S
Overview
Causes
| Genus and Species | Ascaris lumbricoides |
|---|---|
| Common Name | Giant Intestinal Roundworm |
| Etiologic Agent of: | Ascariasis |
| Infective stage | Embryonated Egg |
| Definitive Host | Man |
| Portal of Entry | Mouth |
| Mode of Transmission | Ingestion of Embryonated egg through contaminated food or water |
| Habitat | Small Intestine |
| Pathogenic Stage | Adult Larva |
| Mode of Attachment | Retention in the mucosal folds using pressure |
| Mode of Nutrition | Feeding of Chyme |
| Pathogenesis | Larva – pneumonitis, Loeffler’s syndrome;
Adult – Obstruction, Liver abscess, Appendicitis. With Blood-Lung Phase along with Hookworms and Strongyloides stercoralis. |
| Laboratory diagnosis | Concentration methods and Direct Fecal Smear: Kato-Katz |
| Treatment | Albendazole, Mebendazole, or Pyrantel Pamoate |
| Diagnostic Feature - Adult | Female - prominent genital girdle |
| Diagnostic Feature - Egg | Coarse mammilated albuminous coating |
Gallery
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![Magnified 128X, this photomicrograph revealed some of the ultrastructural features displayed by a fertile Ascaris lumbricoides egg. A. lumbricoides is the largest nematode (roundworm) parasitizing the human intestine. From Public Health Image Library (PHIL). [1]](/images/9/93/Ascariasis01.jpeg)
Magnified 128X, this photomicrograph revealed some of the ultrastructural features displayed by a fertile Ascaris lumbricoides egg. A. lumbricoides is the largest nematode (roundworm) parasitizing the human intestine. From Public Health Image Library (PHIL). [1] -
![Magnified 125X, this photomicrograph revealed the presence of a fertile Ascaris sp. egg that was found in an unstained formalin-preserved stool sample. See PHIL 411 for an example of an unfertilized Ascaris lumbricoides egg. From Public Health Image Library (PHIL). [1]](/images/b/bc/Ascariasis02.jpeg)
Magnified 125X, this photomicrograph revealed the presence of a fertile Ascaris sp. egg that was found in an unstained formalin-preserved stool sample. See PHIL 411 for an example of an unfertilized Ascaris lumbricoides egg. From Public Health Image Library (PHIL). [1] -
![Depicted in this 1960 photograph were two Ascaris lumbricoides nematods, i.e., roundworms. The larger of the two was the female of the species, while the normally smaller male was on the right. Adult female worms can grow over 12 inches in length. From Public Health Image Library (PHIL). [1]](/images/4/41/Ascariasis03.jpeg)
Depicted in this 1960 photograph were two Ascaris lumbricoides nematods, i.e., roundworms. The larger of the two was the female of the species, while the normally smaller male was on the right. Adult female worms can grow over 12 inches in length. From Public Health Image Library (PHIL). [1] -
![This micrograph reveals both fertilized (A) and unfertilized (B) Ascaris eggs, and a Trichuris egg (C); Mag. 125X. From Public Health Image Library (PHIL). [1]](/images/6/68/Ascariasis04.jpeg)
This micrograph reveals both fertilized (A) and unfertilized (B) Ascaris eggs, and a Trichuris egg (C); Mag. 125X. From Public Health Image Library (PHIL). [1] -
![This diagram depicts the various stages in the life cycle of the intestinal roundworm nematode Ascaris lumbricoides. From Public Health Image Library (PHIL). [1]](/images/b/bd/Ascariasis05.jpeg)
This diagram depicts the various stages in the life cycle of the intestinal roundworm nematode Ascaris lumbricoides. From Public Health Image Library (PHIL). [1]
![Magnified 128X, this photomicrograph revealed some of the ultrastructural features displayed by a fertile Ascaris lumbricoides egg. A. lumbricoides is the largest nematode (roundworm) parasitizing the human intestine. From Public Health Image Library (PHIL). [1]](/index.php/File:Ascariasis01.jpeg)
![Magnified 125X, this photomicrograph revealed the presence of a fertile Ascaris sp. egg that was found in an unstained formalin-preserved stool sample. See PHIL 411 for an example of an unfertilized Ascaris lumbricoides egg. From Public Health Image Library (PHIL). [1]](/index.php/File:Ascariasis02.jpeg)
![Depicted in this 1960 photograph were two Ascaris lumbricoides nematods, i.e., roundworms. The larger of the two was the female of the species, while the normally smaller male was on the right. Adult female worms can grow over 12 inches in length. From Public Health Image Library (PHIL). [1]](/index.php/File:Ascariasis03.jpeg)
![This micrograph reveals both fertilized (A) and unfertilized (B) Ascaris eggs, and a Trichuris egg (C); Mag. 125X. From Public Health Image Library (PHIL). [1]](/index.php/File:Ascariasis04.jpeg)
![This diagram depicts the various stages in the life cycle of the intestinal roundworm nematode Ascaris lumbricoides. From Public Health Image Library (PHIL). [1]](/index.php/File:Ascariasis05.jpeg)