Enteric infection with roundworm Ascaris lumbricoides
Enteric protozoal infection with Giardia lamblia, Cryptosporidium, or Entamoeba histolytica
IMAGING
General Features
Radiographic Findings
Fluoroscopic Findings
CT Findings
Ultrasonographic Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Gross Pathologic & Surgical Features
Microscopic Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Consider
Image Interpretation Pearls
Selected References
Duffin C et al: Radiologic imaging of bowel infections. Semin Ultrasound CT MR. 41(1):33-45, 2020
Khan MW et al: Small bowel Ascaris infestation: a diagnostic challenge. Int J Gen Med. 9:99-101, 2016
Childers BC et al: CT evaluation of acute enteritis and colitis: is it infectious, inflammatory, or ischemic?: Resident and Fellow Education Feature. Radiographics. 35(7):1940-1, 2015
Ruankham W et al: Prevalence of helminthic infections and risk factors in villagers of Nanglae Sub-District, Chiang Rai Province, Thailand. J Med Assoc Thai. 97 Suppl 4:S29-35, 2014
Proceedings of the IV International Giardia and Cryptosporidium Conference, 31 January–03 February 2012, Wellington, New Zealand. Infect Genet Evol. 15:1-94, 2013
Lakshmi SP et al: Ascariasis: challenges in the diagnosis of single worm disease. J Indian Med Assoc. 111(9):621-2, 2013
Moonah SN et al: Host immune response to intestinal amebiasis. PLoS Pathog. 9(8):e1003489, 2013
Kao S et al: Education and imaging. Gastrointestinal: amebic colitis. J Gastroenterol Hepatol. 24(1):167, 2009
Lim JH: Parasitic diseases in the abdomen: imaging findings. Abdom Imaging. 33(2):130-2, 2008
Njemanze PC et al: High-frequency ultrasound imaging of the duodenum and colon in patients with symptomatic giardiasis in comparison to amebiasis and healthy subjects. J Gastroenterol Hepatol. 23(7 Pt 2):e34-42, 2008
Suzuki A et al: Education and imaging. Gastrointestinal: ascariasis. J Gastroenterol Hepatol. 23(11):1770, 2008
Das CJ et al: Imaging of ascariasis. Australas Radiol. 51(6):500-6, 2007
Rana SS et al: Parasitic infestations of the biliary tract. Curr Gastroenterol Rep. 9(2):156-64, 2007
Ali SA et al: Giardia intestinalis. Curr Opin Infect Dis. 16(5):453-60, 2003
McDonald V: Parasites in the gastrointestinal tract. Parasite Immunol. 25(5):231-4, 2003
Related Anatomy
Loading...
Related Differential Diagnoses
Loading...
References
Tables
Tables
KEY FACTS
Terminology
Imaging
Top Differential Diagnoses
Clinical Issues
Diagnostic Checklist
TERMINOLOGY
Definitions
Enteric infection with roundworm Ascaris lumbricoides
Enteric protozoal infection with Giardia lamblia, Cryptosporidium, or Entamoeba histolytica
IMAGING
General Features
Radiographic Findings
Fluoroscopic Findings
CT Findings
Ultrasonographic Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Gross Pathologic & Surgical Features
Microscopic Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Consider
Image Interpretation Pearls
Selected References
Duffin C et al: Radiologic imaging of bowel infections. Semin Ultrasound CT MR. 41(1):33-45, 2020
Khan MW et al: Small bowel Ascaris infestation: a diagnostic challenge. Int J Gen Med. 9:99-101, 2016
Childers BC et al: CT evaluation of acute enteritis and colitis: is it infectious, inflammatory, or ischemic?: Resident and Fellow Education Feature. Radiographics. 35(7):1940-1, 2015
Ruankham W et al: Prevalence of helminthic infections and risk factors in villagers of Nanglae Sub-District, Chiang Rai Province, Thailand. J Med Assoc Thai. 97 Suppl 4:S29-35, 2014
Proceedings of the IV International Giardia and Cryptosporidium Conference, 31 January–03 February 2012, Wellington, New Zealand. Infect Genet Evol. 15:1-94, 2013
Lakshmi SP et al: Ascariasis: challenges in the diagnosis of single worm disease. J Indian Med Assoc. 111(9):621-2, 2013
Moonah SN et al: Host immune response to intestinal amebiasis. PLoS Pathog. 9(8):e1003489, 2013
Kao S et al: Education and imaging. Gastrointestinal: amebic colitis. J Gastroenterol Hepatol. 24(1):167, 2009
Lim JH: Parasitic diseases in the abdomen: imaging findings. Abdom Imaging. 33(2):130-2, 2008
Njemanze PC et al: High-frequency ultrasound imaging of the duodenum and colon in patients with symptomatic giardiasis in comparison to amebiasis and healthy subjects. J Gastroenterol Hepatol. 23(7 Pt 2):e34-42, 2008
Suzuki A et al: Education and imaging. Gastrointestinal: ascariasis. J Gastroenterol Hepatol. 23(11):1770, 2008
Das CJ et al: Imaging of ascariasis. Australas Radiol. 51(6):500-6, 2007
Rana SS et al: Parasitic infestations of the biliary tract. Curr Gastroenterol Rep. 9(2):156-64, 2007
Ali SA et al: Giardia intestinalis. Curr Opin Infect Dis. 16(5):453-60, 2003
McDonald V: Parasites in the gastrointestinal tract. Parasite Immunol. 25(5):231-4, 2003
STATdx includes over 200,000 searchable images, including x-ray, CT, MR, and ultrasound images. To access all images, please log in or subscribe.