Which histologic findings are characteristic of giardiasis?

Updated: Oct 01, 2018
  • Author: Hisham Nazer, MBBCh, FRCP, DTM&H; Chief Editor: Burt Cagir, MD, FACS  more...
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No classic universal histologic abnormalities result from infection with G intestinalis. Patients with giardiasis who undergo endoscopy and small bowel biopsy are likely to have similar findings compared to controls.

Patients with immunoglobulin deficiency states and giardiasis may demonstrate various degrees of villous atrophy that bear a striking resemblance to celiac sprue. These conditions can be differentiated from sprue by the absence of plasma cells in the lamina propria.

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