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Skull bossing is a descriptive term in medical physical examination indicating a protuberance of the skull, most often in the frontal bones of the forehead ("frontal bossing"). Although prominence of the skull bones may be normal, skull bossing may be associated with certain medical conditions, [ 1 ] including nutritional, metabolic, hormonal ...
Compensatory growth occurs forward at the coronal suture and backward at the lambdoid suture giving respectively a prominent forehead, called frontal bossing, and a prominent back portion of the head, called coning. [10] [11] This is the most common form of craniosynostosis. [13]
The Type III forehead is the most common situation and occurs in more than 90% of patients. The forehead, in this situation, has a prominent bossing across the top of the brows, and that bossing is overly projected. A frontal sinus is present. The thinness of the sinus precludes using exclusively rotary instruments to thin the bone.
Cranial sutures. A defining characteristic of Crouzon syndrome is craniosynostosis, which results in an abnormal head shape.This is present in combinations of: frontal bossing, trigonocephaly (fusion of the metopic suture), brachycephaly (fusion of the coronal suture), dolichocephaly (fusion of the sagittal suture), plagiocephaly (unilateral premature closure of lambdoid and coronal sutures ...
Bossing (bulging) of the forehead. Open skull sutures, large fontanelles. Hypertelorism. Delayed ossification of bones forming symphysis pubis, producing a widened symphysis. Coxa vara can occur, limiting abduction and causing Trendelenburg gait. Short middle fifth phalanges, [14] sometimes causing short and wide fingers. [15] Vertebral ...
The frontal suture is a fibrous joint that divides the two halves of the frontal bone of the skull in infants and children. Typically, it completely fuses between three and nine months of age, with the two halves of the frontal bone being fused together.
Trigonocephaly is a congenital condition due to premature fusion of the metopic suture (from Ancient Greek metopon 'forehead'), leading to a triangular forehead. The premature merging of the two frontal bones leads to transverse growth restriction and parallel growth expansion.
Features of this condition include, by area affected: [1] [3] Head or neck: convex nasal ridge, delayed tooth eruption, dental crowding, dental malocclusion, depressed nasal bridge, downslanted palpebral fissures, flat forehead, high forehead, high palate, mandibular prognathia, midface retrusion, narrow palate, sloping forehead, supernumerary teeth, and wide nose