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Case prepared by: Jennifer Scudiere MD
GI Pathology Fellow
Attending: Robert Anders MD PhD
  Case 48
Clinical History: This case was prepared by Dr. Julie Katz Karp MD, a resident at Johns Hopkins Hospital Department of Pathology.
It was modified to fit this web format by Dr. Jennifer Scudiere.

The patient is a 66-year-old Ethiopian man who had been diagnosed with carcinoma of hepatobiliary origin a month prior to presentation in Bangkok, Thailand. On presentation a month after his initial diagnosis, he was deemed not to be a surgical candidate due to the presence of liver metastases. Chemotherapy was initiated and the patient was subsequently admitted to the hospital for abdominal pain. A few days later, he underwent a near-total colectomy for pneumatosis coli.

The colectomy specimen showed mural pneumatosis with areas of colonic mucosal necrosis and hemorrhage. Multiple tubular adenomata were present.

Two worm-like organisms grossly identified in the colonic lumen, shown in Images 1-3.

What is the species of this organism?

Image 1 Image 1
Image 2 Image 2
Image 3 Image 3
Choose the correct diagnosis:
  a. Trichuris spp.
  b. Ascaris spp.
  c. Strongyloides spp.
  d. Enterobius spp.
  e. Taenia spp.

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