TY - CHAP M1 - Book, Section TI - Abnormal Cephalic Presentations A1 - Dy, Jessica A1 - El-Chaar, Darine A2 - Posner, Glenn D. A2 - Dy, Jessica A2 - Black, Amanda A2 - Jones, Griffith D. Y1 - 2015 N1 - T2 - Oxorn-Foote Human Labor & Birth, 6e 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. SN - PB - McGraw-Hill Medical CY - New York, NY Y2 - 2024/04/16 UR - obgyn.mhmedical.com/content.aspx?aid=1106376627 ER -