Frontal bossing is an unusually prominent forehead, sometimes associated with a heavier than normal brow ridge.
is seen only in a few rare syndromes, including acromegaly, a chronic disorder caused by too much growth hormone, which leads to enlargement of the bones of the face, jaw, hands, feet, and skull.
Common Causes ...
What Is Frontal Bossing?
Frontal bossing is a medical term used to describe a prominent, protruding forehead. This symptom is the main marker of many conditions, including many issues that affect a person's hormones, bones, and/or stature.
Large anterior fontanel
Premature closing of skull bones
Depressed nasal bridge
Stenotic external auditory canals ...
There is a typically large head with prominence of the forehead (frontal bossing), underdevelopment (hypoplasia) of the midface with cheekbones that lack prominence, and a low nasal bridge with narrow nasal passages.
The forehead and overlying skin is thickened, sometimes leading to . There is a tendency towards mandibular overgrowth with prognathism, maxillary widening, tooth separation and jaw malocclusion.
Frontal-orbital advancement (Craniosynostosis repair)
Frontotemporal dementia (Pick's disease)
Frostbite - hands
Frozen foods vs. fresh or canned (Foods - fresh vs. frozen or canned) ...
" Characteristic craniofacial features may include an abnormally large head (macrocephaly) with a bulging forehead (); widely spaced eyes (ocular hypertelorism) that are abnormally prominent; a small, ...
People with ED often have certain cranial-facial features which can be distinctive, frontal bossing is common, longer or more pronounced chins are frequent, broader noses are also very common.
Individuals with achondroplasia have short stature caused by rhizomelic shortening of the limbs, characteristic faces with and mid-face hypoplasia, exaggerated lumbar lordosis, limitation of elbow extension and rotation, bow legs , ...
Achondroplasia is a rare genetic disorder characterized by an unusually large head (macrocephaly) with a prominent forehead (frontal bossing) and flat (depressed) nasal bridge; short upper arms and legs (rhizomelic dwarfism), ...
In addition to short stature, people with 3-M syndrome have a triangle-shaped face with a broad, prominent forehead () and a pointed chin; the middle of the face is less prominent (hypoplastic midface).
eye inflammation, characteristic frontal bossing (protrusion of the forehead) and protruding eyes
shortening of distal limbs giving rise to growth retardation
muscle and tissue wasting.
How is it diagnosed?
Conduction deafness and cleft palate with broad nasal root and , wide spacing of toes, broad thumbs and great toes, and often other signs of generalised bone dysplasia; X-linked recessive inheritance.
Prominent forehead (frontal bossing)
Shortened arms and legs (especially the upper arm and thigh)
Short stature (significantly below the average height for a person of the same age and sex)
Spinal stenosis ...
Characteristic facial features may include a triangular-shaped face with a small, pointed chin; an abnormally prominent forehead ()
Precocious sexual development, Cryptorchidism ...
Fractional excretion of sodium
Fractured clavicle in the newborn
Fragile X syndrome
Frequent or urgent urination
Frozen shoulder ...
have abnormal bone growth that causes the following clinical symptoms: short stature with disproportionately short arms and legs, short fingers, a large head (macrocephaly) and specific facial features with a prominent forehead () and ...
See also: Mutation, Pediatrics, Hormone, Autosomal dominant, Dwarfism