Macrostomia
Abnormally large-sized corner of the mouth resulting from the failure of lower facial tissues to fuse during embryonic development.
Hypoparathyroidism
Lack of sufficient parathyroid hormone in the body, creating an imbalance of calcium that can lead to muscle problems including spasms, fatigue, and, in some cases, seizures.
Lesion
Abnormal change in the structure of an organ due to a birth defect, injury, or disease.
Hematoma
Blood in the tissues from a leak in the blood vessels.
High-resolution ultrasonography
Technology using sound waves that enables doctors to obtain detailed, two-dimensional images of a developing fetus.
Hydrocephalus
Abnormal accumulation of fluid that leads to enlargement of the head and causes pressure on the brain
Head sutures
The seams that separate the bones of the head. As a child develops, the sutures are normally pushed apart to accommodate the enlarging brain, with bone filling in the gaps.
Glossoptosis
Condition in which the tongue is pushed toward the back of the throat, where it can block the airway.
Hard palate
Bone that forms the anterior, or front portion, of the roof of the mouth.
Glaucoma
Disease marked by increased pressure in the eyeball that can result in gradual loss of vision.