Fig. 1
From: Adenocarcinoma arising in sigmoid colon neovagina 53 years after construction
a Transvaginal endoscopy. Anastomosis of ectopic sigmoid colon with residual vagina (black arrows). A 45-mm protruding lesion was observed in the vicinity of the anastomosis site, occupying about three quarters of the lumen. b Transvaginal ultrasonography. Muscularis propria layer (hypoechoic fourth layer) was interrupted with an unclear layer pattern. Hypoechoic tumor appeared to invade beyond the colon wall (white arrow)