Changes

===Endoscopy===

===Endoscopy===

[[Image:Giardiasis duodenum high power|thumb|right|150px|Giardia in the duodenum. Source: Wikimedia Commons; Author: Nephron (2009)]]

[[Image:Giardiasis duodenum high power.jpg|thumb|right|150px|Giardia in the duodenum. Source: Wikimedia Commons; Author: Nephron (2009)]]

The above tests may also be performed using duodenal aspirates obtained by endoscopy.

The above tests may also be performed using duodenal aspirates obtained by endoscopy.