Small bowel tissue biopsy smearDefinitionSmall bowel tissue biopsy smear is a laboratory test which examines tissue from the small intestine for the presence of microorganisms associated with certain intestinal infections. How the Test is PerformedThe specimen is obtained by EGD (esophagogastroduodenoscopy), a flexible scope that is passed through the digestive tract to the small intestine to view the organs and obtain specimens. A sample of small intestinal tissue is biopsied (removed). The specimen is placed on a microscope slide, stained, and sectioned (sliced) for histological (tissue) examination. How to Prepare for the TestThe preparation is the same as for an EGD. How the Test Will FeelThe test will feel the same as an EGD. Why the Test is PerformedThe test is performed to diagnose an infection or parasitic infestation of the small bowel. In most cases, this test is only done when stool examinations and duodenal string test have been unable to confirm the diagnosis. Normal ResultsThe small intestine contains certain bacteria and yeast which are considered normal intestinal flora. The presence of pathogenic bacteria or certain parasites is abnormal. What Abnormal Results MeanThe presence of certain microorganisms, such as Giardia, Entamoeba, and others is abnormal. RisksThe risks are the same as for an EGD with biopsy. ConsiderationsExamination of tissue by a pathologist is another valuable aid in the diagnosis of certain intestinal infections. Illustrations and Images
Review Date:
2/10/2006 Reviewed By: Kenneth Wener, M.D., Division of Infectious Diseases, Beth Israel Deaconess Medical Center, Boston, MA. Review provided by VeriMed Healthcare Network. The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997-
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