Wilms tumor is a cancerous tumor that starts in the cells of the kidney. It’s the most common type of kidney cancer in children.

A brain tumor is an abnormal growth of tissue in the brain. The brain is part of the central nervous system (CNS). The CNS also includes the spinal cord.

Detailed information on cancer in children

Rhabdomyosarcoma is a type of cancer. It starts in cells that should grow into skeletal muscle cells. Skeletal muscles control voluntary muscle movements. These are movements we can control. This rare cancer is most common in children under age 10.

Retinoblastoma is a rare cancer of the retina of the eye. The retina is in the back of the eye. It’s the part of the eye that receives light. Retinoblastoma is the most common tumor affecting the eye in children. It almost always occurs in children less than 5 years old.

When a child is diagnosed with cancer, parents are entitled to a clear explanation about anything related to the condition. Here are some important questions you may consider asking your child's doctor.

A ureterocele is when part of a ureter right near the bladder becomes larger and bulges. This happens because the ureter's opening into the bladder is too small and blocks urine flow.

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.

A detailed look at lung transplantation in children, including why it is advised, information about the surgery, and the long-term outlook for a child after a lung transplant.

Detailed information on lower respiratory disorders in children