The variations in the shape of the head of the newly born infant due to the exigences of its passage through the birth canal are familiar to one. The types and the factors of their causation have been fully and adequately explained by obstetricians. One sees, however, fairly frequently an asymmetrical appearance of the face concerning which I have been unable to find any reference, either in obstetric or in pediatric literature. The face as one looks at it squarely appears lopsided: the lower jaw is asymmetrical, one side being straightened out or even showing a concavity, while the opposite side is normally convex. One also notes that there is a rounded depression under the angle of the jaw on the molded side, while the neck on the opposite side is definitely fuller. This depression may be farther forward, or it may and usually does extend back under the ear
PARMELEE AH. MOLDING DUE TO INTRA-UTERINE POSTURE: FACIAL PARALYSIS PROBABLY DUE TO SUCH MOLDING. Am J Dis Child. 1931;42(5):1155–1159. doi:10.1001/archpedi.1931.01940180105017
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