Congenital Abnormality
frontal bossing
Definitions related to frontal bossing:
  • A skeletal deformity characterized by an unusually prominent forehead. Causes include acromegaly, Hurler syndrome, Silver-Russell syndrome, and thalassemia major.
    NCI
    U.S. National Cancer Institute, 2021
  • Bilateral bulging of the lateral frontal bone prominences with relative sparing of the midline.
    Human Phenotype Ontology (HPO)
    The Human Phenotype Ontology Project, 2025
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