- Stomach :-
_ The stomach shows normal gastric rugae (thick elongated folds).
_ These fold become less prominent at distal stomach (pylorus / antrum).
_ The collapsed stomach shows variable wall thickness. - Small intestine :-
_ The small intestine shows valvulae conniventes / plicae circulares (thin closely spaced folds).
_ These folds become less prominent at ileum.
_ These are more easily seen when there is fluid in the lumen of the bowel or the valvulae are edematous.
_ Air within the small intestine usually has smooth continuous appearance. - Colon :-
_ The large intestine / colon shows colonic haustrations (thick widely spaced folds).
_ These folds become less prominent at cecum.
_ Air within the colon usually has bubbly appearance.