Intestinal nematode (Ascaris lumbricoides)

Case contributed by Dr Subash Thapa

Presentation

Abdominal discomfort and pain with decreased hemoglobin level.

Patient Data

Age: 20 years
Gender: Female
Modality: Ultrasound

There are few freely mobile, long hypoechoic blind ending tubular structure with well-defined echogenic wall within the bowel lumen.

Case Discussion

Ascaris lumbricoidoes, the intestinal nematode is the largest parasite in the human measuring up to 40cm long 1.

They may be asymptomatic or a large bolus of worm entangled can result in intestinal obstruction or perforation.

Some large worm migrates through biliary tract causing obstruction, biliary coli, cholecystitis, cholangitis or even intrahepatic abscess (rare)

Some large worm can even manage to migrate up to esophagus provoking coughing and oral expulsion of the worm.

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Case Information

rID: 40122
Case created: 8th Oct 2015
Last edited: 7th Aug 2016
Inclusion in quiz mode: Included

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