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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
- Ghonge NP: Gastric migration of intestinal ascariasis: B-mode sonographic depiction. J Ultrasound Med. 27(12):1799-801, 2008
- 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
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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
- Ghonge NP: Gastric migration of intestinal ascariasis: B-mode sonographic depiction. J Ultrasound Med. 27(12):1799-801, 2008
- 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
