Conditions & Treatments

Legg-Calvé-Perthes disease (or Perthes disease) is a rare hip condition that affects children. ...

Leukemia is cancer of the blood. It’s the most common form of cancer in childhood. The cancer cells grow in bone marrow and go into the blood. St. Louis Children's Hospital provides advanced leukemia services for the St. Louis metro area. ...

Leukodystrophies are disorders that affect the growth of development of the myelin sheath, the fatty substance that insulates and protects the nerves in the brain and spinal cord. The myelin sheath continues to develop after birth, with the growth rate peaking before 18 months of ...

Head lice are tiny parasitic insects that can infest the skin. They live on people’s heads and feed on their blood. Head lice can cause intense itching. ...

A congenital limb defect is when an arm or leg doesn’t form normally as a baby grows in the uterus. The baby is born with the defect. ...

A lipomyelomeningocele is a fatty mass that is located under the skin on the child’s back. It is usually located in the middle of the back. ...

What is listeriosis? Listeriosis is a food-borne illness transmitted by bacteria in contaminated food. The listeria organism has been found in a variety of raw foods. These include uncooked meats and vegetables. It is also in processed foods that become contaminated after processing, such as ...

Little League Shoulder is pain over the top of the large arm bone (the humerus)—located just below the shoulder. A growth plate in this area can get inflamed and damaged causing pain. Children with this condition may have trouble fully raising and lowering their arm ...

Little League Elbow is pain over the inside of the elbow that happens in children involved in sports that involve throwing or other overhead activities (usually baseball or softball). There is a growth plate in this area that can become inflamed and cause pain with ...

What is Pediatric Liver Cancer? Childhood liver cancer is a disease in which malignant (cancer) cells form in the tissues of the liver. The liver is one of the largest organs in the body. It has four lobes and fills the upper right side of ...