Paula and Bobby
Parents of Lillie
Mandibular Prognathia

Understanding skull related symptoms and features
Symptoms may affect multiple parts of the body. Understanding which part of the body a symptom affects, can help us to better understand the potential underlying causes of a symptom, including a rare disease or genetic syndrome.
The skull has several crucial functions: it cradles and protects the brain, supports the face and forms the head. It is a bony structure made up of the mandible and cranium.
Symptoms affecting the skull can sometimes be seen with the naked eye, especially if they affect the shape, size and structure of the head and face. Diagnosing a skull related symptom may involve different tests and assessments, both subjective and objective
What is Mandibular Prognathia?
It is essentially a larger lower jaw than normal, which also makes the chin protrude and stick out more. It occurs during the development of the facial features and skull, in vitro. It is often referred to as an underbite.
In some instances surgery may be an option to correct it. It can sometimes cause problems with secondary or permanent teeth coming in, and orthodontic treatment or surgery might be necessary to correct crooked teeth.
What should I do next?
In some instances a large lower jaw may be one of the features of a rare disease or genetic syndrome. In this case fast, targeted genetic analysis can give you a more accurate diagnosis.
Synonyms:
Hyperplasia of lower jaw, Relative mandibular prognathism, Lower jaw excess, Big lower jaw, Increased size of mandible, Mandibular prognathism, Macromandible, Mandible prognathism, Hypertrophy of lower jaw, Mandibular hyperplasia, Big mandible, Prognathism, Enlarged mandible, Lower jaw hyperplasia, Prominent chin, Increased projection of lower jaw, Prominent jaw, Hypertrophy of mandible, Mandibular macrognathia, Prognathia, Large lower jaw, Prominent lower jaw, Mandibular excess, Large mandible, Prominent mandible, Increased size of lower jaw, Enlargement of mandible, Increased projection of mandible
HPO:
0000303
Optional syndromes:
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Synonyms:
Hyperplasia of lower jaw, Relative mandibular prognathism, Lower jaw excess, Big lower jaw, Increased size of mandible, Mandibular prognathism, Macromandible, Mandible prognathism, Hypertrophy of lower jaw, Mandibular hyperplasia, Big mandible, Prognathism, Enlarged mandible, Lower jaw hyperplasia, Prominent chin, Increased projection of lower jaw, Prominent jaw, Hypertrophy of mandible, Mandibular macrognathia, Prognathia, Large lower jaw, Prominent lower jaw, Mandibular excess, Large mandible, Prominent mandible, Increased size of lower jaw, Enlargement of mandible, Increased projection of mandible
HPO:
-
0000303
Optional syndromes:
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