Intended for healthcare professionals

Rapid response to:

Practice Easily Missed

Endometriosis

BMJ 2010; 340 doi: https://doi.org/10.1136/bmj.c2168 (Published 23 June 2010) Cite this as: BMJ 2010;340:c2168

Rapid Response:

Endometriosis is not benign

I take exception to the statement in the opening paragraph of the
otherwise valuable review by Engemise et al that endometriosis is a benign
disorder.
It has long been recognised that neoplasia may arise in endometriosis and
at a reported frequency of up to 3%. The ovary is by far the commonest
site where malignancy arises in association with endometriosis, but tumour
has been reported to develop from endometriosis at virtually every site
where endometriosis is found. Indeed, biopsies are taken prior to
treatment not only to confirm the diagnosis of endometrosis but also to
ensure that neoplasia, whether in situ or invasive, is not present.

Reference

Stern RC, Dash R, Bentley RC et al. Malignancy in endometriosis:
frequency and comparison of ovarian and extraovarian types. International
Journal of Gynecological Pathology 2001; 20: 133-139

Competing interests:
None declared

Competing interests: No competing interests

09 July 2010
John H F Smith
Consultant Gynaecological Histopathologist & Cytopathologist
Royal Hallamshire Hospital, Sheffield. S10 3QP. UK