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Meningitis in Children What is meningitis in children? Meningitis is a swelling (inflammation) of the thin membranes that cover the brain and the spinal cord. These membranes are called the meninges. What causes meningitis in a child? Meningitis is most often caused by a

Benign Prostatic Hyperplasia (BPH) What is benign prostatic hyperplasia? Benign prostatic hyperplasia (BPH) is also called benign prostatic hypertrophy. It means that the prostate gland has become very large and may cause problems passing urine. BPH is not cancer. It's a common

Ulcerative Colitis in Children What is ulcerative colitis in children? Ulcerative colitis is an inflammatory bowel disease (IBD). In this condition, the inner lining of your child’s large intestine (colon or bowel) and rectum gets inflamed. This inflammation often starts in the

Atherosclerosis What is atherosclerosis? Atherosclerosis is thickening of the walls of the arteries. It is also known as hardening of the arteries. It is caused by a buildup of plaque in the inner lining of an artery. Plaque is made up of deposits of fatty substances, cholesterol

Non-Hodgkin Lymphoma (NHL) in Children What is non-Hodgkin lymphoma (NHL) in children? NHL is cancer that starts in the lymphatic system. The lymphatic system is part of the immune system. It helps to fight diseases and infections. NHL results when the cells in the lymphatic

Chronic Bronchitis What is chronic bronchitis? Bronchitis is inflammation of the breathing tubes. These are the airways called bronchi. This inflammation causes too much mucus to be made and other changes. Bronchitis can be acute (short-term) or chronic (long-term). Chronic

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

Hodgkin Lymphoma in Children What is Hodgkin lymphoma in children? Hodgkin lymphoma is also called Hodgkin disease. It's a type of cancer that starts in the lymphatic system. The lymphatic system is part of the immune system. It helps to fight diseases and infections. The

Encephalitis in Children What is encephalitis in children? Encephalitis is inflammation of the brain. The inflammation causes the brain to swell. This leads to changes in a child's nervous system that can include confusion, changes in alertness, and seizures. Meningitis often

Lupus What is lupus? Systemic lupus erythematosus (SLE or lupus) is an autoimmune disease that causes your body’s immune system to attack its own cells and tissues. It causes episodes of inflammation to various parts of the body. It can affect your joints, tendons, and skin. It