Down syndrome is a genetic condition caused when an unusual cell division results in an extra full or partial copy of chromosome 21. This extra genetic material causes the developmental changes and physical features of Down syndrome. The term "syndrome" refers to a set of symptoms that tend to happen together. With a syndrome, there is a pattern of differences or problems. The condition is ...
Overview Ehlers-Danlos syndrome is a group of inherited disorders that affect your connective tissues — primarily your skin, joints and blood vessel walls. Connective tissue is a complex mixture of proteins and other substances that provide strength and elasticity to the underlying structures in your body.
Diagnosis Bardet-Biedl syndrome is a very rare condition. Symptoms begin over time and may include many that can happen in other genetic conditions. Because of this, BBS may not be diagnosed right away. To diagnose BBS, your child's healthcare professional does a physical exam, checks weight and blood pressure, and talks with you about symptoms and your family history. Because many symptoms of ...
Prader-Willi Syndrome Comprehensive Clinic Overview Prader-Willi syndrome is a genetic condition associated with cognitive and behavioral symptoms, delays in development, chronic hunger, and low levels of growth hormone. Babies with Prader-Willi syndrome may appear "floppy" and have difficulty with feeding, often requiring feeding tubes.
Marfan syndrome is an inherited disorder that affects connective tissue — the fibers that support and anchor your organs and other structures in your body. Marfan syndrome most commonly affects the heart, eyes, blood vessels and skeleton.
Thoracic outlet syndrome treatment may include medicines, physical therapy or surgery. Mayo Clinic's experienced vascular surgeons are trained to provide a number of different surgical treatment options, depending on the cause of your thoracic outlet syndrome. The Mayo Clinic experience and patient stories
Overview Reye's syndrome is a serious condition that causes swelling in the liver and brain. It can occur at any age but usually affects children and teenagers after a viral infection, most commonly the flu or chickenpox. Reye's syndrome is rare. The condition also is known as Reye syndrome.