ICD-11 definition : Parietal foramina are symmetrical, oval defects in the parietal bone situated on each
side of the sagittal suture and separated from each other by a narrow bridge of bone.
The size of the openings, normally obliterated during the fifth fetal month, decrease
with age.;
Parietal foramina are symmetrical, oval defects in the parietal bone situated on each
side of the sagittal suture and separated from each other by a narrow bridge of bone.
The size of the openings, normally obliterated during the fifth fetal month, decrease
with age.