Endoscopy 2007; 39: E306
DOI: 10.1055/s-2007-967015
Unusual cases and technical notes

© Georg Thieme Verlag KG Stuttgart · New York

Acute hookworm infection revealed by capsule endoscopy

I. C. Wu1 , C. Y. Lu1 , D. C. Wu1
  • 1 Division of Gastroenterology, Dept. of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
Further Information

Publication History

Publication Date:
24 October 2007 (online)

A 39-year-old man presented at hospital having suffered from watery diarrhea for 10 days. He had also had fever, chills and periumbilical cramping pain for 3 days. He had recently traveled to Jakarta and had taken snake’s blood and gall 2 days before diarrhea developed. Blood tests showed leukocytosis (13 070/μl), eosinophilia (6414 cells/μl) and an increased serum IgE level (360 IU/ml). His hemoglobin count was 17.2 g/dl, and a fecal smear demonstrated some ova. Colonoscopy revealed two parasites, both about 1 cm long, with one in the ascending colon (Figure [1]) and the other in the sigmoid colon. They were extracted endoscopically and proved to be hookworms (Ancylostoma species). A capsule endoscopy was arranged in order to define the extent of the parasitic infection and rule out the possibility of other small-intestinal diseases (Video). The capsule endoscopy examination identified several worms in the stomach, duodenum, jejunum and proximal ileum. Figure [2] shows a hookworm in the jejunum, which was sucking blood, with the worm’s body turning red. The patient’s symptoms subsided after a 3-day course of mebendazole treatment.

Figure 1 A worm was seen on the colonic wall and was extracted by colonoscopy.

Figure 2 Capsule endoscopy revealed a worm in the jejunum.


Videoonline content including video sequences viewable at:www.thieme-connect.de/ejournals/abstract/endoscopy/doi/10.1055/s-2006-944698

Competing interests: None


D. C. Wu, M. D., Ph. D.

Division of Gastroenterology

Kaohsiung Medical University Hospital
100 Zih-You 1st Road
Kaohsiung City 807

Fax: +886-7-3135612

Email: dechwu@yahoo.com