Hyperostosis Frontalis Interna is characterized by the thickening of the frontal bone of the skull. It is not clear that this disorder is actually rare. Some clinicians. Hyperostosis frontalis interna is characterised by benign overgrowth of the inner table of the frontal bone. It is seen most commonly in older females. The etiology . chronic, severe anaemia · hyperparathyroidism · acromegaly · osteopetrosis · hyperostosis frontalis interna; long-term phenytoin use; genetic diseases (rare).

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The risk of transmitting the disorder from affected parent to offspring is 50 percent for each pregnancy regardless of the sex of the resulting child.

Hyperostosis calvariae diffusa and hyperostosis fronto-parietalis are related entities. Genetic counseling may be of benefit for patients and their families.

Rare Disease Database

Hyperostosis frontalis interna HFI is a bone overgrowth on the inside of the frontal bone. Some clinicians believe hiperosrosis it may be a common abnormality found in as many as 12 percent of the female population.

The lack of this hormone on the kidney causes excretion of excessive quantities of very dilute but otherwise normal urine. Myotonic Dystrophy is an inherited disorder involving the muscles, vision, and endocrine glands.

This alteration can occur in isolation or together with neuropsychiatric symptoms, metabolic and endocrine manifestations which together form the Morgagni-Stewart-Morel syndrome. Frontall you for updating your details. In particular, the frontal bone was affected by severe hyperostosis frontalis interna HFI.


The famous castrato singer Farinelli was exhumed by our research group in July for the purpose of gaining some insight into his biological profile through a study of his skeletal remains.

Hyperostosis of the skull (differential) | Radiology Reference Article |

Hyperostosis Frontalis Interna is characterized by the thickening of the frontal bone of the skull. Support Radiopaedia and see fewer ads. Comparisons may be useful for a differential diagnosis:. Symptoms of this disorder may be tripping, falling, difficulty in moving the neck, lack of facial expression and a nasal sounding voice.

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[Morgagni-Stewart-Morel syndrome. Case report and review of the literature].

During this hospital stay the presence of grade I obesity, hyperglycemia, hypertriglyceridemia and hyperuricemia was documented.

All studies receiving U. Hyperostosis of the skull – differential diagnosis Hyperostosis of the skull – causes. Most conspicuously affected are the extremities, jaws, and face.

[Morgagni-Stewart-Morel syndrome. Case report and review of the literature].

Support Radiopaedia and see fewer ads. The skull thickening may be sessile or nodular, and may affect the bone in a focal or diffuse manner. Other conditions that may be found in patients with this disorder are: Diabetes Insipidus is due to an abnormality of anti-diuretic hormone vasopresin or ADH originating in the posterior lobe of the pituitary gland.


Rfontal powerful and sweet voice became legendary. As a result, scientists feel that this condition may be much more prevalent than suspected, but often goes undetected. In this regard, the case of a patient who meets criteria for this syndrome is interja and a review of the literature is performed with focus on its pathophysiology.

This excess growth can only be seen in an x-ray. Differential Diagnosis The differential is that of hyperostosis of the skull and includes: The patient met the criteria of Morgagni-Stewart-Morel syndrome to manifest the presence of hyperostosis frontalis interna with metabolic, endocrine and neuropsychiatric manifestations.

Central Nervous SystemMusculoskeletal. Acromegaly is a slowly progressive, chronic metabolic disorder in which an excess of growth hormone causes abnormal enlargement of various tissues of the body and unusual height. Hyperostosis frontalis interna HFI. The skull is made up of several bony plates initially joined by fibrous connective tissue which normally fuse together and harden over a period of several years after growth of the brain.

Seizures and headaches can be treated with standard medications.

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