Endometriosis of the sigmoid colon: a diagnostic problem.

@article{Athmanathan1990EndometriosisOT,
  title={Endometriosis of the sigmoid colon: a diagnostic problem.},
  author={N Athmanathan and V K Sehdev and Toby. Walsh},
  journal={The British journal of clinical practice},
  year={1990},
  volume={44 12},
  pages={658-60}
}
Colonic endometriosis is often difficult to diagnose pre-operatively and most cases are diagnosed postoperatively from histology. The main problems with pre-operative diagnosis are due to the radiographic similarities between endometriosis and malignant lesions and the difficulties in obtaining satisfactory biopsy material.