How is small intestine biopsy obtained?
Small intestine biopsy samples can be obtained by:
EGD(Esophago-gastro-duodeno-scopy) In this procedure, a flexible fiber-optic tube (endoscope) is inserted through your mouth or nose into the upper gastrointestinal tract.
Capsule biopsy method produces a large sample of the intestinal lining (mucosa) and allows sampling of areas that are beyond the reach of the endoscope. The procedure is similar to that of EGD.
The back of your throat is sprayed with a local anesthesia, the tube and capsule is inserted through your mouth.
The position may be changed from sitting to lying on the right side to help the capsule advance through the stomach and into the small bowel.
The position of the tube entering the small intestine is checked by fluoroscopy which confirms that the capsule has passed the pylorus, small samples of small intestine tissue are obtained by the endoscopes cutting edge, after which the instrument and tube are withdrawn.