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Related Experiment Videos

Roundworm obstruction: sonographic diagnosis

H M Malde1, D Chadha

  • 1Department of Radiology, K.E.M. Hospital, Bombay, India.

Abdominal Imaging
|January 1, 1993
PubMed
Summary
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Ultrasonography (US) reveals characteristic findings for pediatric roundworm obstruction, differentiating it from appendicitis. Early diagnosis via US leads to non-surgical treatment with hypertonic saline enemas.

Area of Science:

  • Pediatric Radiology
  • Gastrointestinal Imaging
  • Parasitic Infections

Background:

  • Roundworm obstruction is a rare but significant cause of acute abdominal pain in children.
  • Clinical presentation can mimic acute appendicitis, leading to potential misdiagnosis.

Purpose of the Study:

  • To detail the specific sonographic features of roundworm obstruction in pediatric patients.
  • To evaluate the diagnostic utility of ultrasonography in differentiating roundworm obstruction from other acute abdominal conditions.

Main Methods:

  • Retrospective review of sonographic findings in five pediatric patients with confirmed roundworm obstruction.
  • Detailed description of individual worm morphology and characteristic movements on ultrasound.
  • Analysis of the sonographic appearance of worm boluses and associated findings.

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Main Results:

  • Ultrasonography demonstrated individual worms as hypoechoic tubular structures with echogenic walls.
  • Distinct visualization of body segments and the alimentary canal (single echogenic line or parallel hyperechoic bands).
  • Transaxial views showed a 'target' sign; worms exhibited curling movements; 'helminthoma' appearance noted in two cases.

Conclusions:

  • Sonographic findings in roundworm obstruction are distinctive and aid in accurate diagnosis.
  • Ultrasonography can reliably differentiate roundworm obstruction from appendicitis, avoiding unnecessary surgery.
  • Prompt response to hypertonic saline enema highlights the efficacy of non-surgical management.