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Table 1 Ante-natal ultrasonography findings at 26 weeks after LMP

From: Discordant twins with the smaller baby appropriate for gestational age – unusual manifestation of superfoetation: A case report

  Twin A Twin B
Presentation Cephalic Breech
Placenta Anterior Posterior
Biparital diameter 65 mm 77 mm
Femur Length 49 mm 48 mm
Head circumference 235 mm 276 mm
Gestation 26 weeks +/- 2 weeks 30 weeks +/- 2 weeks