What is frontal Hyperostosis?

Hyperostosis frontalis interna (HFI) is a disorder involving progressive symmetric thickening of the inner table of the frontal bone of the human skull. It is predominantly found in older women, and is thought to be the result of a more generalised disorder of bone metabolism.

What causes Hyperostosis Frontalis?

The etiology is unknown; the syndromic forms of HFI are associated with obesity and endocrine abnormalities. Non-syndromic HFI is often considered an incidental imaging finding in post menopausal women.

Is hyperostosis frontalis interna curable?

There is no known treatment for Hyperostosis Frontalis Interna. Seizures and headaches can be treated with standard medications. Genetic counseling may be of benefit for patients and their families. Other treatment is symptomatic and supportive.

Can Hyperostosis Frontalis cause headaches?

Learning points. Hyperostosis frontalis interna (HFI) is a continuous overgrowth of the frontal bone and has been described in association with chronic headaches and rarely with seizures.

What does Hyperostosis mean?

Definition of hyperostosis : excessive growth or thickening of bone tissue.

What is benign Hyperostosis?

Hyperostosis frontalis interna is characterized by benign overgrowth of the inner table of the frontal bone. The etiology is unknown. The condition is generally of no clinical significance and an incidental finding. It is typically bilateral and symmetrical and may extend to involve the parietal bones.

How is hyperostosis frontalis interna diagnosed?

While people with Morgagni-Stewart-Morel syndrome nearly always have hyperostosis frontalis interna, hyperostosis frontalis interna is usually an incidental finding on x-ray films, computed tomography, or magnetic resonance imaging of the head and by itself is not indicative of any disease.

What is hyperostosis meningioma?

In meningioma, hyperostosis is a well-known sign of tumor, and is observed in 4.5% of all types, but is more frequently present in meningioma en plaque with an occurrence of 13% to 49% (3). Primary intraosseous meningioma induces hyperostosis in 60% of cases (4).

What causes frontal bossing in adults?

Causes of Frontal Bossing A common cause of frontal bossing is acromegaly, which is a hormonal disorder caused when the pituitary gland releases too much growth hormone. This excess leads to the bones of the face, skull, jaw, hands, and feet being enlarged.

What is a Hyperostosis?

The term ‘hyperostosis’ is used to describe conditions in which there is enlargement of the outer portion of bones. However, a range of conditions in which there is thickening of the endosteal surface can also occur.

What is hyperostosis frontalis interna?

Hyperostosis frontalis interna. Hyperostosis frontalis interna is characterized by benign overgrowth of the inner table of the frontal bone. It is seen most commonly in older females. The etiology is unknown. The condition is generally of no clinical significance and an incidental finding. It is typically bilateral and symmetrical,…

What is foraminal stenosis?

What is foraminal stenosis? Foraminal stenosis is the narrowing or tightening of the openings between the bones in your spine. These small openings are called the foramen. Foraminal stenosis is a specific type of spinal stenosis. Nerves pass though the foramen from your spinal cord out to the rest of your body.

What is the prevalence of hyperostosis frontoparietalis?

Hyperostosis calvariae diffusa and hyperostosis frontoparietalis are related entities. Post mortem studies report a prevalence of 12% 3. It is most common in women over the age of 65 with 87% of severe hyperostosis frontalis interna occurring in this cohort of patients 3.

What is the differential diagnosis for hyperostosis of the skull?

The differential is that of hyperostosis of the skull and includes: Paget disease. fibrous dysplasia. sclerotic metastases. meningioma.