Kerckring center

Kerck·ring cen·ter

an occasional independent ossification center in the occipital bone; it appears in the posterior margin of the foramen magnum at about the sixteenth week of gestation.
Synonym(s): Kerckring ossicle
Farlex Partner Medical Dictionary © Farlex 2012
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At birth the Kerckring center was identified as an ossicle completely separated from the supraoccipital bone in 132 newborns (66%).
In the Kerckring-supraocciptal sutures, the Kerckring center was identified to be completely fused at birth in 10% of cases, partially fused in 24%, and appearing as a separated ossicle in 66%.