The mirror image artifact of early pregnancy.
Lim
B H
BH
Amos
M
M
Fairhead
A C
AC
D000328:Adult; D016477:Artifacts; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011271:Pregnancy, Ectopic / Q000000981:diagnostic imaging*; D016216:Ultrasonography, Prenatal