Orofaciodigital syndrome type 2

Orofaciodigital syndrome type 2 (OFDS II), also known as Mohr syndrome, is a rare genetic disorder that affects the development of the oral cavity, facial features, and digits. This condition is part of a group of diseases known as orofaciodigital syndromes, which are characterized by anomalies in the development of the face, oral cavity, and fingers and toes. OFDS II is distinguished from other types of orofaciodigital syndromes by its specific pattern of physical features and inheritance pattern.

Symptoms and Characteristics

The primary features of OFDS II include abnormalities of the tongue, such as lobulated or bifid tongue, cleft lip and/or palate, and broad nasal bridge. Individuals with this syndrome may also have extra or fused fingers and toes (polydactyly or syndactyly), and in some cases, there may be cognitive impairment or developmental delays. However, the severity and presence of these symptoms can vary widely among affected individuals.

Genetics

OFDS II is inherited in an autosomal recessive pattern, which means that both copies of the gene in each cell have mutations. The parents of an individual with an autosomal recessive condition each carry one copy of the mutated gene, but they typically do not show signs and symptoms of the condition. The specific gene associated with OFDS II has not been conclusively identified, making genetic counseling and diagnosis challenging.

Diagnosis

Diagnosis of OFDS II is primarily based on clinical evaluation and the presence of characteristic physical features. Genetic testing may be helpful in some cases, but the absence of a clearly identified gene associated with the syndrome can limit the utility of such tests. Prenatal diagnosis is possible if there is a known risk of the syndrome in the family, but it is complicated by the lack of specific genetic markers.

Treatment

There is no cure for OFDS II, and treatment is symptomatic and supportive. This may include surgical correction of cleft lip and/or palate, management of dental anomalies, and orthopedic interventions for limb abnormalities. Early intervention programs may be beneficial for developmental delays or cognitive impairments. Regular follow-up with a multidisciplinary team of healthcare providers is important to address the various aspects of the disorder.

Prognosis

The prognosis for individuals with OFDS II varies depending on the severity of symptoms and the presence of associated complications. With appropriate medical and surgical management, many individuals can lead a normal life. However, those with significant cognitive impairment or severe physical abnormalities may require lifelong support and care.

Orofaciodigital syndrome type 2 Resources
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