title: Intrapartum translabial ultrasound demonstration of face presentation during first stage of labor.
abstract: We report an unusual case in which sonographic diagnosis of face presentation was made by translabial ultrasound examination during the first stage of labor. In a multigravida, induction of labor was performed at 39 weeks' gestation for suspected small-for-gestational age. The diagnosis of face presentation was confirmed by the use of intrapartum translabial ultrasound examination. In face presentation, the orbits and nasal bridge are shown in the center of the presenting part at the mid-sagittal plane. Emergency cesarean delivery was performed for labor dystocia. Here we discuss the merits and limitations of transabdominal, transvaginal and translabial ultrasound examinations in assisting clinical diagnosis of non-vertex malpresentation. We propose the use of intrapartum translabial scan in documentation, counseling and education in case of unusual non-vertex malpresentation.
authors.affiliation: Department of Obstetrics and Gynaecology, Kwong Wah Hospital, Hong Kong SAR, China. lauwl@hotmail.com
authors.forename: Wai-lam
authors.initials: WL
authors.lastname: Lau
authors.forename: Lai-yin
authors.initials: LY
authors.lastname: Cho
authors.forename: Wing-cheong
authors.initials: WC
authors.lastname: Leung
mesh_terms: D000328:Adult; D005145:Face / Q000000981:diagnostic imaging*; D005260:Female; D006257:Head / Q000000981:diagnostic imaging; D006801:Humans; D007746:Labor Presentation; D007747:Labor Stage, First; D011247:Pregnancy; D016216:Ultrasonography, Prenatal