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Results 1 - 1 of 1 for Extra fontanelles
  1. Cleidocranial dysplasia 
    ... soft spots" on the heads of infants. The fontanelles normally close in early childhood, but they may remain open throughout life in people with this disorder. Some individuals with cleidocranial dysplasia have extra pieces of bone called Wormian bones within the ...
    https://medlineplus.gov/genetics/condition/cleidocranial-dysplasia - Genetics