抄録
A 45-year-old woman presented with a 2-month history of diarrhea and lower abdominal pain.The patient began to suffer from bloody diarrhea, and was referred to hospital.
Colonoscopy revealed elevated lesions like a submucosal tumor at two locations in the sigmoid colon and rectum.
The overlying mucosa was edematous and showed small red nodules at the center of the lesion with white spots and a scar.
Intestinal endometriosis was suspected, and biopsy specimens were obtained from the nodules.
On histopathological examination, the submucosal layer through the lamina propria showed a structure similar to the uterine stroma and glands.
Immunostaining revealed that the lesion was estrogen-receptor positive, therefore, the lesions were diagnosed as intestinal endometriosis.
