RT Book, Section A1 Dy, Jessica A1 El-Chaar, Darine A2 Posner, Glenn D. A2 Dy, Jessica A2 Black, Amanda A2 Jones, Griffith D. SR Print(0) ID 1106376627 T1 Abnormal Cephalic Presentations T2 Oxorn-Foote Human Labor & Birth, 6e YR 2015 FD 2015 PB McGraw-Hill Medical PP New York, NY SN 9780071740289 LK obgyn.mhmedical.com/content.aspx?aid=1106376627 RD 2024/04/20 AB The fetus enters the pelvis in a cephalic presentation approximately 95 percent to 96 percent of the time. In these cephalic presentations, the occiput may be in the persistent transverse or posterior positions. In about 3 percent to 4 percent of pregnancies, there is a breech-presenting fetus (see Chapter 25). In the remaining 1 percent, the fetus may be either in a transverse or oblique lie (see Chapter 26), or the head may be extended with the face or brow presenting.