Gastric tissue biopsy culture: purpose procedure , A gastric tissue biopsy and culture are laboratory tests that examine stomach it’s more commonly known as an endoscopy or egd. upper small intestine. Upper gi endoscopy johns hopkins medicine health library, An upper gi endoscopy or egd (esophagogastroduodenoscopy) is a procedure to diagnose and treat problems in your upper gi (gastrointestinal) tract..

Egd upper endoscopy mount sinai health system, What is upper endoscopy (egd) an esophagogastroduodenoscopy (egd) is a procedure that allows your physician to examine the lining of the upper part of your gastrointestinal tract including the esophagus stomach and the duodenum (the beginning part of your small intestines)..