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Lymphatic Malformations in Children What is a lymphatic malformation in children? A lymphatic malformation is a lymphatic vessel that isn't formed correctly. The vessel traps the lymph fluid and causes cysts to form. Your child may have one or more of these cysts. Lymphatic

Pneumonia in Children What is pneumonia in children? Pneumonia is an infection in the lungs. It can be mild or serious. Pneumonia is generally more common in children younger than 5 years old. What causes pneumonia in a child? Pneumonia is most often caused by bacteria or viruses

Marfan Syndrome in Children What is Marfan syndrome in children? Marfan syndrome is a genetic disorder that affects the body's connective tissue. Connective tissue holds the body's cells, organs, and other tissue together. Connective tissue is also important in growth and

Atrial Septal Defect (ASD) in Children What is an atrial septal defect in children? The atrial septum is the wall between the two upper chambers of the heart (right and left atria). An atrial septal defect (ASD) is an abnormal hole in this wall. ASD is a heart problem that is

Prematurity What is prematurity? A baby born before 37 weeks of pregnancy is considered premature or born too early. Other terms used for prematurity are preterm and the nicknames "preemie" or "premie". About 1 in every 10 infants are born prematurely. Twins and other multiples

Male Infertility What is male infertility? Infertility is a disease of the reproductive system. It makes a person unable to have children. It can affect a man, a woman, or both. Male infertility means that a man has a problem with his reproductive system. It means you can't start

Brain Abscess in Children What is a brain abscess in children? An abscess is a pocket of infection. In the brain, an abscess may be in one or more areas. This condition may cause problems with how the brain and spinal cord function. It's a serious and life-threatening condition

Imperforate Anus in Children What is imperforate anus in children? Imperforate anus is a problem that your child is born with. It happens when your child has a blocked or missing anus. The final part of the digestive tract is the rectum. The rectum collects and compacts the solid

Contact Dermatitis in Children What is contact dermatitis in children? Contact dermatitis is a skin reaction from contact with certain substances. The substances may be: Irritants. These cause direct skin irritation and inflammation. They are the most common cause of contact

Whooping Cough (Pertussis) in Adults What is whooping cough (pertussis)? Whooping cough (pertussis) is a very contagious respiratory illness. It mainly affects babies and young children, but adults can also get it. Whooping cough caused thousands of deaths in the 1930s and 1940s