Branchioskeletogenital syndrome is a rare genetic disorder that affects the development of the head, neck, and reproductive organs. It is characterized by malformations of the branchial arches, which are the structures that form the face and neck, as well as malformations of the skeleton and genitalia. Symptoms may include cleft lip and palate, hearing loss, and abnormalities of the heart, kidneys, and reproductive organs.

The symptoms of Branchioskeletogenital syndrome vary from person to person, but may include:

- Abnormal development of the head and neck
- Abnormal development of the ears, including low-set ears, malformed ears, and/or hearing loss
- Abnormal development of the eyes, including small eyes, droopy eyelids, and/or vision problems
- Abnormal development of the nose, including a flattened bridge and/or a wide nasal bridge
- Abnormal development of the mouth, including a cleft lip and/or cleft palate
- Abnormal development of the hands and feet, including webbed fingers and/or toes
- Abnormal development of the genitals, including Undescended testes and/or an abnormally small penis
- Abnormal development of the skeleton, including short stature, sc

Branchioskeletogenital syndrome is caused by mutations in the SIX1 gene. This gene is responsible for the development of the branchial arches, which are structures in the neck that form during embryonic development. Mutations in this gene can lead to a variety of physical abnormalities, including malformations of the head and neck, hearing loss, and abnormalities of the reproductive organs.

The treatments for Branchioskeletogenital syndrome vary depending on the individual and the severity of the condition. Generally, treatment focuses on managing the symptoms and complications associated with the syndrome. This may include surgery to correct any structural abnormalities, medications to manage any associated medical conditions, physical therapy to improve mobility, and speech therapy to improve communication. In some cases, genetic counseling may be recommended to help families understand the condition and its implications.

The primary risk factor for Branchioskeletogenital syndrome is having a parent who carries a mutation in the SIX1 gene. Other risk factors include having a family history of the condition, being of Ashkenazi Jewish descent, and having a parent with a history of consanguinity (marriage between close relatives).

At this time, there is no known cure for Branchioskeletogenital syndrome. However, there are medications that can help manage the symptoms of the condition. These medications may include anticonvulsants, muscle relaxants, and medications to help with breathing difficulties. Additionally, physical and occupational therapy can help improve mobility and strength.