has part has part characteristic of part of inheres in part of has modifier Abnormal calvaria morphology Abnormal frontal bone morphology Abnormality of the frontal bone Deformity of the frontal bone UMLS:C4021873 An abnormality of the frontal bone. Anomaly of the frontal bone Abnormal morphology of frontal bone Abnormality of the bone of the forehead Malformation of the frontal bone morphology abnormal tetrapod frontal bone