AP-4-associated hereditary spastic paraplegia (AP-4-HSP) is a group of slowly-progressing neurodegenerative disorders. Learn more from Boston Children's Hospital.
Dysphagia is a term that means “difficulty swallowing.” It is the inability of food or liquids to pass easily from your child’s mouth, into the throat, and through the esophagus to the stomach during the process of swallowing.
Juvenile dermatomyositis (JDM) is a rare autoimmune disorder in which a child’s immune system attacks blood vessels throughout his body, causing muscle inflammation.
