About frontofacionasal dysostosis

What is frontofacionasal dysostosis?

A very rare syndrome characterized by abnormalities of the bones of the skeleton as well as mental retardation. Various facial, eye and urogenital anomalies are also present.

What are the symptoms for frontofacionasal dysostosis?

Infants with frontofacionasal dysplasia typically have distinctive malformations of certain bones forming the skull as well as additional facial, nasal, and eye (ocular) defects. For example, the disorder may be associated with premature closure of the fibrous joints (sutures) between particular bones of the skull (craniosynostosis), causing the head to appear unusually Short and broad (brachycephaly). In addition, there may be early conversion of fibrous tissue into bone (early ossification) within the base of the skull (sphenoid bone), and some of the air-filled cavities (i.e., paranasal ethmoidal sinuses) within certain bones around the nose may be abnormally large. Underdevelopment of the middle portion of the face (midface hypoplasia) also occurs.

Affected infants may also have additional, associated skull defects, such as underdevelopment (hypoplasia) of part of the bone forming the front of the skull (frontal bone) and an abnormal opening (congenital cleft) within the frontal bone (cranium bifidum). In some infants with a congenital cleft of the skull, there may be protrusion of a portion of the brain and its surrounding membranes (meninges) through the skull defect (encephalocele). However, in others, there may be no associated abnormality of the brain or meninges (cranium bifidum occultum). Frontofacionasal dysplasia is also typically characterized by distinctive nasal abnormalities, such as underdevelopment of the nose and malformation of the nostrils such as underdevelopment of the nasal wings (nasal alae). In addition, affected infants may have incomplete closure of the roof of the mouth (cleft palate) and an abnormal groove in the upper lip (cleft lip). Infants with cleft lip and cleft palate often experience Feeding difficulties due to poor suckling ability and increased air swallowing. They also tend to develop dental abnormalities, including improper positioning, malformation, or absence of certain teeth. Some children with these malformations may also experience associated speech difficulties and have an increased susceptibility to middle ear infections. The fleshy mass (uvula) that hangs in the back of the throat may be split (bifid uvula).

Infants with frontofacionasal dysplasia also have various abnormalities involving the eyes. These may include Widely spaced eyes (ocular hypertelorism); an abnormally increased horizontal distance between the inner angles of the eyelids (telecanthus); and unusually narrow, “S-shaped” eyelid folds (palpebral fissures). In addition, affected individuals may have partial absence of tissue (coloboma) from the colored regions of the eyes (irides) or the upper eyelids; an inability to completely close the eyes (lagophthalmos); drooping of the upper eyelids (ptosis); and absence of eyelashes. In some cases, additional ocular defects may also be present, including adhesion of the edges of the upper and lower eyelids (ankyloblepharon), abnormal smallness of the eyes (microphthalmia), or the formation of cysts in certain regions of the eyes (e.g., limbic dermoids).

In some instances, individuals with frontofacionasal dysplasia have additional physical abnormalities. For example, some may have benign (noncancerous), fatty tumors in the forehead area (frontal lipomas) or a widow’s peak, which is a “V-shaped” extension of the scalp hair onto the middle of the forehead.

What are the causes for frontofacionasal dysostosis?

Frontofacionasal dysplasia appears to be inherited in an autosomal recessive pattern. Recessive genetic disorders occur when an individual inherits the same abnormal gene for the same trait from each parent. If an individual receives one normal gene and one gene for the disease, the person will be a carrier for the disease, but usually will not show symptoms. The risk for two carrier parents to both pass the defective gene and, therefore, have an affected child is 25 percent with each pregnancy. The risk to have a child who is a carrier like the parents is 50 percent with each pregnancy. The chance for a child to receive normal genes from both parents and be genetically normal for that particular trait is 25 percent. The risk is the same for males and females.

The parents of some individuals with frontofacionasal dysplasia have been closely related by blood (consanguineous). In recessive disorders, if both parents carry the same gene for the same disease trait, there is an increased risk that their children may inherit the two genes necessary for development of the disease.

What are the treatments for frontofacionasal dysostosis?

The treatment of frontofacionasal dysplasia is directed toward the specific symptoms that are apparent in each individual. Treatment may require the coordinated efforts of a team of medical professionals, such as pediatricians; surgeons; specialists who diagnose and treat abnormalities of the skeleton, joints, muscles, and related tissues (orthopedists); physicians who specialize in neurological disorders (neurologists); eye specialists (ophthalmologists); and/or other health care professionals.

Treatment may include surgical repair of certain malformations, including cleft lip and cleft palate; congenital defects of the skull (e.g., cranium bifidum); protrusion of a portion of the brain and its surrounding membranes through an abnormal opening in the skull (encephalocele); eyelid defects; and/or other malformations potentially associated with the disorder. The specific surgical procedures performed will depend upon the severity of the anatomical abnormalities, their associated symptoms, and other factors.

In children with cleft lip and cleft palate, supportive measures may be necessary during infancy to ensure improved feeding and appropriate intake of nutrients. In addition, affected children may require certain dental procedures to help correct improperly aligned teeth or other dental abnormalities potentially associated with cleft lip or palate. Certain drug therapies or other measures may also be required for the early, appropriate treatment of middle ear infections.

Early intervention may be important to help ensure that children with frontofacionasal dysplasia reach their potential. Special services that may be beneficial include special social support, speech therapy, and other medical, social, and/or vocational services.

Genetic counseling is recommended for affected individuals and their families.

Is there a cure/medications for frontofacionasal dysostosis?

There's a partial cure available for frontofacionasal dysostosis. The treatment totally depends on the type of abnormality you're suffering from:

1. Bone malfunctions: Workout, vitamin and nutrient supplements, and drugs are used to treat established osteoporosis. Exercise and supplementation are frequently recommended to help prevent bone malfunctions. Other than that, at times surgeries are also recommended if the case is serious.

2. Pediatric hormone treatment: A daily anesthetic of hormone treatment may activate physical growth later in life in people who produce insufficient GH. Hence retarded growth is curable through this treatment.

3. Leg Lengthening: This could be performed on some patients who have extremely short legs. The leg bone is modified and placed in a special frame. The frame is adjusted on a daily basis in order to lengthen the bone. If someone has leg abnormalities can opt for this.

4. Craniofacial abnormalities: Craniofacial surgery is used to correct congenital skull flaws or injuries to the bone and neck. These treatments necessitate the use of general anesthesia. This unique surgical technique allows doctors to access the core of the skull and head of the spine by working through the nose and sinuses rather than the face or skull.

5. Mental counseling: Counseling for mental and physical health can help you cope with issues such as depression, anxiety, and stress, among others. Some therapists can assist you in dealing with and overcoming issues related to mental slowness.

Wide forehead,Broad nose,Uneven fingers,Short stature,Abnormal feet
Mental conditions,Slow growth-related conditions,Bone malfunction
Calcitonin-salmon (Fortical® and Miacalcin®),Ibandronate: Boniva®,Denosumab (Prolia®),Somatropin

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