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An alternative to the diagnostic dilatation and curettage--endometrial cytology.

Endometrial aspiration cytology has been shown by multicentre prospective studies to be an acceptable and valuable method of assessing the endometrium. A retrospective study was undertaken over three years' routine use of the Isaacs cell sampler. In 86% of the cases suitable endometrium was obtained, with experience of the technique being the important factor. When compared with histological findings, all 11 cases of malignancy were confirmed, including one ovarian adenocarcinoma. Of the cytological reports of endometrial hyperplasia, 78% were confirmed by the histological findings, with the remainder showing minor degrees of cystic hyperplasia or normal endometrium. In no case was a more abnormal lesion present on histological examination than had been suggested by cytological findings. The use of progestogens in reversing hyperplasia is seen to be effective, though the long term benefit remains uncertain. It is concluded that with an experienced cytologist, Isaacs endometrial aspiration should be used routinely for the primary investigation of dysfunctional uterine bleeding and postmenopausal bleeding.