Yolk sac calcification: a sonographic finding associated with intrauterine embryonic demise in the first trimester.
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.
Harris
R D
RD
Department of Radiology, Harborview Medical Center, Seattle.
Vincent
L M
LM
Askin
F B
FB
D000293:Adolescent; D000328:Adult; D002114:Calcinosis / Q000175:diagnosis* / Q000473:pathology; D005260:Female; D005313:Fetal Death / Q000175:diagnosis*; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis* / Q000473:pathology; D014463:Ultrasonography; D015017:Yolk Sac / Q000473:pathology*