Postmenopausal women with endometrial fluid collection on sonography should undergo endometrial sampling if the endometrial lining is thicker than 3 mm or the endometrial fluid is echogenic. If the lining is 3 mm or less and the endometrial fluid is clear, endometrial sampling is not necessary, but we recommend endocervical sampling to rule out endocervical cancer.

This article is intended as a state-of-the-art compilation and is based primarily upon secondary sources. Many of the chemicals referred to in the processes described in it are highly toxic and must be used with extreme caution and great care. The strictest safety procedures and other measures to ensure adequate ventilation must be incorporated in all fumigation techniques. The author is deeply indebted to Frazer Poole, assistant director for preservation, the Library of Congress, for his numerous corrections and suggestions for improvement of the first draft of this paper; and to Mary Boccaccio, archivist, University of Maryland, for her encouragement of research projects such as this one while chairwoman of the SAA Buildings and Technical Processes Committee.

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