Endometriosis of the sigmoid colon: a diagnostic problem.

  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},
  volume={44 12},
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.