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Radiology, Vol 166, 109-110, Copyright © 1988 by Radiological Society of North America

ARTICLES

Yolk sac calcification: a sonographic finding associated with intrauterine embryonic demise in the first trimester

RD Harris, LM Vincent and FB Askin
Department of Radiology, Harborview Medical Center, Seattle.

Two cases of the sonographic demonstration of yolk sac calcification associated with first-trimester intrauterine embryonic demise are reported. Histologic verification was obtained in one case. Yolk sac calcification may reflect typical dystrophic changes or be more specifically related to a yolk sac calcium-binding protein. Awareness of this sonographic finding--which the authors believe to be previously undescribed--may prevent diagnostic errors.




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