Journal of Ultrasound in Medicine, Vol 5, Issue 8 445-452, Copyright © 1986 by American Institute of Ultrasound in Medicine
Sonographic depiction of normal and abnormal endometrium with histopathologic correlation
A. C. Fleischer, G. C. Kalemeris, J. E. Machin, S. S. Entman and A. E. James Jr
The sonographic appearance of the endometrium was correlated to
histopathologic findings in 38 patients who underwent hysterectomy. The
thickness was accurately assessed by sonography (within +/- 1 mm) in 33 of
38 patients. The hypoechoic halo which surrounds the endometrium was found
to represent the inner third of the myometrium which is relatively vascular
and compact. In postmenopausal patients who are not receiving hormonal
replacement, an endometrium of greater than 5 mm should be considered
abnormal. Several causes of abnormally thick endometrium were encountered
in this study, including endometrial carcinoma, hyperplasia, adenomyosis,
hematometria, mucometria, and pyometria. Sonography was found to be
accurate in determining the depth of myometrial invasion in adenocarcinoma.