Human Roundworm

This photomicrograph reveals histopathologic changes indicative of the presence of the intestinal parasitic nematode (roundworm), Strongyloides stercoralis.Clinical Features:Frequently asymptomatic. Gastrointestinal symptoms include abdominal pain and diarrhea. Pulmonary symptoms (including Loeffler’s syndrome) can occur during pulmonary migration of the filariform larvae. Dermatologic manifestations include urticarial rashes in the buttocks and waist areas. Disseminated strongyloidiasis occurs in immunosuppressed patients, can present with abdominal pain, distension, shock, pulmonary and neurologic complications and septicemia, and is potentially fatal. Blood eosinophilia is generally present during the acute and chronic stages, but may be absent with dissemination.Created: 1972

This is an illustration of the life cycle of Strongyloides stercoralis, the causal agent of Strongyloidiasis.Created: 2002

This diagram depicts the various stages in the life cycle of the Strongyloides stercoralis nematode.Created: 1982

This photomicrograph reveals histopathologic changes indicative of the presence of the intestinal parasitic nematode (roundworm), Strongyloides stercoralis.Clinical Features:Frequently asymptomatic. Gastrointestinal symptoms include abdominal pain and diarrhea. Pulmonary symptoms (including Loeffler’s syndrome) can occur during pulmonary migration of the filariform larvae. Dermatologic manifestations include urticarial rashes in the buttocks and waist areas. Disseminated strongyloidiasis occurs in immunosuppressed patients, can present with abdominal pain, distension, shock, pulmonary and neurologic complications and septicemia, and is potentially fatal. Blood eosinophilia is generally present during the acute and chronic stages, but may be absent with dissemination.Created: 1972

This photomicrograph reveals histopathologic changes indicative of the presence of the intestinal parasitic nematode (roundworm), Strongyloides stercoralis.Clinical Features:Frequently asymptomatic. Gastrointestinal symptoms include abdominal pain and diarrhea. Pulmonary symptoms (including Loeffler’s syndrome) can occur during pulmonary migration of the filariform larvae. Dermatologic manifestations include urticarial rashes in the buttocks and waist areas. Disseminated strongyloidiasis occurs in immunosuppressed patients, can present with abdominal pain, distension, shock, pulmonary and neurologic complications and septicemia, and is potentially fatal. Blood eosinophilia is generally present during the acute and chronic stages, but may be absent with dissemination.Created: 1972

Description: English: This is the parasite type nematode that name is Strongyloides stercoralis. Usually can found it in stool but in this case found in sputum because this case is hyperinfection of Strongyloides stercoralis. Date: 15 December 2017. Source: Own work. Author: Por Chandharakool.

Description: Deutsch: Zwergfadenwurm (Strongyloides stercoralis). Source: PD - DPDx Image Library;. Author: This file is lacking author information.

Description: English: This diagram demonstrates the life cycle of Strongyloides Storcoralis including infection, reproduction, and the infection process within the human body. Everything is clearly labeled with numbers and a key. Date: 30 July 2019. Source: This comes from https://www.cdc.gov/dpdx/strongyloidiasis/index.html courtesy of the CDC. Author: CDC DPDx courtesy of CDC's Division of Parasitic Diseases and Malaria (DPDM).

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Description: English: Iodine stained Strongyloides stercoralis wet prep Deutsch: Mittels Jod eingefärbtes Nasspräparat von Strongyloides stercoralis. Date: 3 February 2012. Source: Own work. Author: Blueiridium.