 Initially, I thought that may be there was an enterocutaneous fistula in the area, but then I realized that the tissue that was interpreted as an intestinal mucosa was actually a very smooth __________ tissue that was walling the sinus tract. 
Initially , I thought that may be there was an enterocutaneous fistula in the area , but then I realized that the tissue that was interpreted as an intestinal mucosa was actually a very smooth _ _ _ _ _ _ _ _ _ _ tissue that was walling the sinus tract .