ABSTRACT
An association between polycystic ovary syndrome (PCOS) and endometrial carcinoma
was first suggested in 1949. Since then, several studies have been published that
appear to support this association, and it is common practice among gynecologists
and physicians to prescribe hormonal treatment to reduce this perceived risk, although
there is no consensus as to the subgroup of PCOS in whom this is required. The mechanism(s)
underlying any association are also unclear, but it is again widely assumed that chronic
anovulation, which results in continuous estrogen stimulation of the endometrium unopposed
by progesterone, is a major factor. However, obesity, hyperinsulinemia, and hyperandrogenism,
which are also features of PCOS, are risk factors for endometrial carcinoma, but it
does not necessarily follow that the incidence or mortality from endometrial cancer
is increased in women with the syndrome. Potential strategies to prevent endometrial
cancer in PCOS women are discussed.
KEYWORDS
Polycystic ovary syndrome - polycystic ovaries - endometrial hyperplasia - endometrial
carcinoma
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Mr. Paul Hardiman
Academic Department of Obstetrics and Gynaecology, Royal Free and University College
Medical School, The Royal Free Hospital
Pond Street, London NW3 2PF, United Kingdom
Email: p.hardiman@medsch.ucl.ac.uk