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Megaureter in Children What is megaureter in children? Megaureter is a ureter that is much wider than normal. The ureters are the tubes that carry urine from the kidneys to the bladder. A ureter that is wider than 3/8 inch is a megaureter. A megaureter may not drain urine

Fever What is a fever? A fever is a body temperature that is higher than normal. It often means there is an abnormal process occurring in the body. Exercise, hot weather, inflammation, infection, vaccines, and many other things can make body temperature rise. What causes a fever

Langerhans Cell Histiocytosis in Children What is Langerhans cell histiocytosis in children? Langerhans cell histiocytosis is a rare disorder. It occurs when there are very high levels of a type of immune cell called a Langerhans cell. In the past, this disorder was thought to be

Tongue-Tie (Ankyloglossia) in Children What is tongue-tie in children? Tongue-tie (ankyloglossia) is a problem with the tongue that is present from birth. It causes speech and eating problems in some children. The lingual frenulum of the tongue is a small fold of tissue that

Hemifacial Microsomia (HFM) in Children What is hemifacial microsomia in children? Hemifacial microsomia (HFM) is a congenital problem. This means that your child is born with it. In this condition, one side of your baby’s face is underdeveloped. (Hemi means half). HFM usually

Exstrophy of the Bladder and Epispadias in Children What is exstrophy of the bladder and epispadias in children? Exstrophy of the bladder is when a baby’s bladder has grown inside out. It sticks through the wall of the belly (abdomen). The bladder can be seen in the front of the

Posterior Urethral Valves in Children What are posterior urethral valves in children? Posterior urethral valves are a problem with the urethra in a boy. The urethra is the tube that drains urine from the bladder to the outside of the body. Posterior urethral valves are small

Diamond Blackfan Anemia (DBA) in Children What is DBA in children? Diamond Blackfan anemia (DBA) is a rare blood disorder. Children with DBA don't make enough red blood cells. These cells carry oxygen to all other cells in the body. Blood cells are made in the bone marrow, the

Occupational Lung Diseases What are work-related lung diseases? Work-related lung diseases are lung problems that are caused by certain work environments. They are caused by breathing materials into the lungs. These lung diseases may have lasting effects, even after the exposure

Hereditary Hemochromatosis What is hereditary hemochromatosis? Hereditary hemochromatosis is a genetic blood disorder that causes your body to absorb too much iron from the food you eat. Iron is a mineral found in many foods. But too much iron is toxic to your body. The excess