case_images: PMC6216069_01
case_images: CT showed the rectal occupying lesions.
case_images: gr1.jpg
case_images: PMC6216069_01_gr1.jpg
case_images: fig0005
case_images: Enhanced pelvic computed tomography (CT) showed a 3.5 x 3.9 cm vaginal occupying lesion invading the rectum (Fig. 1) and a 5.8 x 4.7 x 5.3 cm hysteromyoma.
case_images: colonoscopy showed the rectal endometriosis mimicking a rectal carcinoma.
case_images: gr2.jpg
case_images: PMC6216069_01_gr2.jpg
case_images: fig0010
case_images: Colonoscopy examination found a mass at the rectum 4 cm from the anus (Fig. 2) and biopsy indicated spindle-cell-like mesenchyma-derived tumor, with the immunohistochemical result not supporting the diagnosis of interstitialoma.
case_images: PET-CT showed 18FDG uptake of the rectal endometriosis.
case_images: gr3.jpg
case_images: PMC6216069_01_gr3.jpg
case_images: fig0015
case_images: PET-CT examination showed an increase of 18FDG uptake of the rectal mass (Fig. 3), with the standardized uptake value(SUV) as 4.7. PET-CT reported that it was a submucous tumor, with interstitialoma being suspicious.