PMC6129320_01
Transvaginal ultrasound: ultrasound imaging of viable cervical ectopic pregnancy. The fetus and placenta appear to be inferior or distal to the internal cervical os. The external os had about 1 cm of functional length.
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During nuchal translucency ultrasound, pregnancy noted to be located within the cervix, specifically, 8mm from the external cervical os (Figure 1).
T2 weighted pelvic MRI: approximately 6.5 x 4.5 x 5 cm amniotic sac with embryo, centered in the cervix.
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Findings were subsequently confirmed by magnetic resonance imaging (MRI) (Figure 2).