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Recently I delivered a woman, seven months pregnant, of a five months' male fetus in which the brain protruded from the mouth. The brain was normal and connected with the spinal cord through a small slit between the palate bones. The cranium was empty, except for the dura mater and tentorium cerebelli. There was a large amount of liquor amnii. The falx cerebri was attached strongly to the gums of the upper jaw. The fetus was somewhat macerated, the cranial bones being loose. In all other respects the fetus was normal.
The mother stated that she felt the child's movements first about four and one-half months and for two weeks after; then they suddenly ceased.
The woman had had two children, one of whom died at birth after instrumental delivery; it was normally formed. The other child is alive and well.
There is no specific history; both parents are well and
BULL CG. PROENCEPHALIC FETUS. JAMA. 1910;LIV(12):970. doi:10.1001/jama.1910.92550380001001u
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