anterior intraoccipital synchondrosis

an·te·ri·or in·tra·oc·cip·i·tal syn·chon·dro·sis

[TA]
cartilaginous union in the newborn between the lateral and the basilar portions of the occipital bone.
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These are: (1) the Kerckring ossicle (ko), (2) posterior intraoccipital synchondrosis (pio), (3) anterior intraoccipital synchondrosis (aio), (4) sphenooccipital synchondrosis (sos), (5) petrooccipital fissure (pof) and (6) occipitomastoid suture (oms).
The anterior intraoccipital synchondrosis showed signs of early fusion (grade 2) starting from the age of 3 years and 6 months with a mean age of four years.
6], found that fusion of anterior intraoccipital synchondrosis began during the second year and displayed grade 4 level of fusion between the ages of 7 and 10 years.

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