Presentation
Asymptomatic patient, twin pregnancy follow-up
Patient Data
Age: 30 years
Gender: Female
From the case:
Vanishing twin
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Info
Two intrauterine fetuses are noted. Fetus A (16 weeks 3 days of gestation) is morphologically normal. Fetus B is adjacent to the placental border in the second gestational sac and is dead. It is smaller (corresponding to 7 weeks of gestation) and does not show movement, cardiac activity or colour Doppler signal.
Case Discussion
In this twin pregnancy, one twin did not develop and died.
This phenomenon is called the evanescent twin 1.
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