Cleidocranial dysplasia, also known as cleidocranial dysostosis, is a rare genetic disorder inherited in an autosomal dominant pattern. This condition leads to the abnormal development of bones, particularly in the skull and shoulders. Individuals affected by this disorder typically exhibit either absent or underdeveloped clavicles (collarbones) and can maneuver their shoulders forward to the point of near contact. The sutures, which are the immovable joints between the skull bones, take longer than usual to fuse together. Additionally, abnormalities may be present in the structure of the pelvis, fingers, teeth, and vertebrae (the bones of the spinal column).