Skip to main content
Log in

Resurgence of intestinal ascariasis among adults: radiological diagnosis and clinical implications

  • Review
  • Published:
Abdominal Radiology Aims and scope Submit manuscript

Abstract

To report the radiological features of intestinal ascariasis and to review the clinical implications of this re-emerging disease for adult population of the USA. This retrospective observational study involved 12 adult patients, whose radiological examinations disclosed unsuspected presence of ascaris in their intestinal tract. They were evaluated by computed tomography of the abdomen with oral contrast, small bowel series with barium, and magnetic resonance enterography. This series included 7 men and 5 women, who ranged in age from 19 to 72 years (mean age 48 years). The typical configuration of ascaris within the bowel loops was demonstrated on CT of the abdomen in 5 patients, small bowel examination with barium in 3, and by MR enterography in another 4 cases. Our study highlights the radiological appearances of intestinal ascariasis and the clinical implications of this resurging disease. The practicing radiologists should be aware of these findings, particularly when examining patients who have immigrated from or traveled to the endemic regions.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8

Similar content being viewed by others

References

  1. Parasites-Ascariasis. Center for Disease Control and Prevention. November 23, 2020. Retrieved from https://www.cdc.gov.

  2. Leung AKC, Leung AAM, Wong AHC, Hon KL (2020) Human ascariasis: an updated review. Recent Pat Inflamm Allergy Drug Discov 14: 133–145.

    Article  CAS  PubMed  Google Scholar 

  3. Khuroo MS (1996) Ascariasis. Gastroenterol Clin North Am 25: 553–577.

    Article  CAS  PubMed  Google Scholar 

  4. Ortega CD, Ogawa NY, Rocha MS, et al (2010) Helminthic disease in the abdomen: an epidemiologic and radiologic overview. RadioGraphics 30: 253–267.

    Article  PubMed  Google Scholar 

  5. Khan MW, Ghauri SK (2016) Small bowel ascaris infestation: a diagnostic challenge. Int J Gen Med 9: 99–101.

    Article  PubMed  PubMed Central  Google Scholar 

  6. Das CJ, Kumar J, Debnath J, Chaudhry A (2007) Imaging of ascariasis. Australas Radiol 51: 500–506.

    Article  CAS  PubMed  Google Scholar 

  7. Wu S (2009) Sonographic findings of Ascaris lumbricoides in the gastrointestinal and biliary tracts. Ultrasound Q 25: 207–209.

    Article  PubMed  Google Scholar 

  8. Khuroo MS, Rather A, Khuroo NS, Khuroo MS (2016) Hepatobiliary and pancreatic ascariasis. World J Gatroenterol 22: 5707–17.

    Google Scholar 

  9. Kanneganti K, Makker JS, Remy P (2013) Ascaris lumbricoides: to expect the unexpected during routine colonoscopy. Case Rep Medicine 2013: e579463.

    Article  Google Scholar 

  10. Hillyer JF (2020) Parasites and parasitology in this SARS-Cov-2, COVID-19 world: an American Society of Parasitologists Presidential Address. J Parasitol 106: 859–868.

    Article  PubMed  Google Scholar 

  11. Mitchell T, Lee D, Weinberg M, et al (2018) Impact of enhanced health interventions for US-bound refugees: evaluating best practices in migration health. Am J Trop Med Hyg 98: 920–928.

    Article  PubMed  Google Scholar 

  12. Darr JS, Conn DB (2015) Importation and transmission of parasitic and other infectious diseases associated with international adoptees and refugees immigrating into the United States of America. Biomed Res Int 2015: e763715.

    Google Scholar 

  13. Swanson SJ, Phares CR, Mamo B, et al (2012) Albendazole treatment and enteric parasites in the United States-bound refugees. N Engl J Med 366: 1498–1507.

    Article  CAS  PubMed  Google Scholar 

  14. Varkey P, Jerath AU, Bagniewski S, Lesnick T (2007) Intestinal parasitic infection among new refugees to Minnesota, 1996–2001. Travel Med Infect Dis 5: 223–229.

    Article  PubMed  Google Scholar 

  15. Geltman PL, Cochran J, Hedgecock C (2003). Intestinal parasites among African refugees resettled in Massachusetts and the impact of an overseas pre-departure treatment program. Am J Trop Med Hyg 69: 657–662.

    Article  PubMed  Google Scholar 

  16. Morse SS (1995) Factors in the emergence of infectious diseases. Emerg Infect Dis 1: 7–15.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  17. Hotez PJ, Molyneux DH, Fenwick A, et al (2007) Control of neglected tropical diseases. N Engl J Med 357:1018–1027.

    Article  CAS  PubMed  Google Scholar 

  18. Abdolrasouli A, McMillan A, Ackers JP (2009) Sexual transmission of intestinal parasites in men who have sex with men. Sex Health 6: 185–194.

    Article  PubMed  Google Scholar 

  19. Holland C (2013) Ascaris: The Neglected Parasite. Elsevier Academic Press, Amsterdam, pp 21–50.

    Google Scholar 

  20. Amzallag-Bellenger E, Oudjit A, Ruiz A, et al (2012) Effectiveness of MR enterography for the assessment of small bowel diseases beyond Crohn disease. RadioGraphics 32: 1423–1444.

    Article  PubMed  Google Scholar 

  21. Park MS, Kim KW, Ha HK, Lee DH (2008) Intestinal parasitic infection. Abdom Imaging 33: 166–171.

    Article  PubMed  Google Scholar 

  22. Sinha R, Rajesh A, Rajiha P, Rachandran I (2012) Infections and infestations of the gastrointestinal tract. Part 2: Parasitic and other infections. Clin Radiol 67: 495–504.

    Article  CAS  PubMed  Google Scholar 

  23. Ilangovan R, Burling D, George A, et al (2012) CT enterography: review of technique and practical tips. Br J Radiol 85: 876–886.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  24. Fletcher JG (2009) CT enterography technique: theme and variations. Abdom Imaging 34: 283–288.

    Article  CAS  PubMed  Google Scholar 

  25. Fidler JL, Guimaraes L, Einstein DM (2009) MR imaging of the small bowel. RadioGraphics 29: 1811–1825.

    Article  PubMed  Google Scholar 

  26. Hommeyer SC, Hamill GS, Johnson JA (1995) CT diagnosis of intestinal ascariasis. Abdom Imaging 20: 315–316.

    Article  CAS  PubMed  Google Scholar 

  27. Prabhakaran S, Doraiswamy VA, Nagaraja V, et al (2012) Nasoenteric tube complications. Scand J Surg 101:147–155.

    Article  CAS  PubMed  Google Scholar 

  28. Jourdan PM, Lamberton PHL, Fernwick A, Addiss DG (2018) Soil-transmitted helminth infections. Lancet 391: 252–265.

    Article  PubMed  Google Scholar 

  29. Ellman BA, Wynne JM, Freeman A (1980) Intestinal ascariasis: new plain film features. AJR 135: 37–42.

    Article  CAS  PubMed  Google Scholar 

  30. Rodriguez EJ, Gama MA, Ornstein SM, Anderson WD (2003) Ascaris causing small bowel volvulus. RadioGraphics 23: 1291–1293.

    Article  PubMed  Google Scholar 

  31. Mahmood T, Mansoor N, Quraishy S, et al (2001) Ultrasonographic appearance of Ascaris lumbricoides in the small bowel. J Ultrasound Med 20: 269–274.

    Article  CAS  PubMed  Google Scholar 

  32. Hwang CM, Kim TK, Ha HK, et al (2001) Biliary ascariasis: MR cholangiography findings in two cases. Korean J Radiol 2: 175–178.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  33. Ng KK, Wong HF, Kong MS, et al (1999) CT, MR cholangiopancreatography, and navigator endoscopic appearance-report of a case of acute biliary obstruction. Abdom Imaging 24: 470–472.

    Article  CAS  PubMed  Google Scholar 

  34. Venkatachalam PS, Patwardhan VN (1953) The role of Ascaris lumbricoides in the nutrition of the host: effect of ascariasis on digestion of protein. Trans Royal Soc Trop Med Hyg 47: 169–175.

    Article  CAS  Google Scholar 

  35. Amoah AS, Boakye DA, Van Ree R, Yazdanbakhsh M (2014) Parasitic worms and allergies in childhood: insights from population studies 2008–2013. Pediatr Allergy Immunol 25: 208–217.

    Article  PubMed  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Gary G. Ghahremani.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest. The authors declare that they have no disclosure relevant to the subject matter of this article.

Ethical approval

Due to the retrospective review of the already performed and medically warranted examinations, the patients consent and IRB approval were waived.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Ghahremani, G.G., Hahn, M.E. Resurgence of intestinal ascariasis among adults: radiological diagnosis and clinical implications. Abdom Radiol 47, 915–922 (2022). https://doi.org/10.1007/s00261-022-03407-6

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00261-022-03407-6

Keywords

Navigation