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.

When a child has cancer or another pain-causing disease, one of their greatest fears is pain. Every effort should be made to ease the pain during the treatment process.

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

Detailed information on respiratory disorders in children

Germ cells form as a baby grows in the womb. The cells usually form the eggs (ova) in females and the sperm in males. Germ cell tumors are made up of these underdeveloped cells. The tumors may be cancer (malignant) or not cancer (benign).

Detailed information on limiting protein in your child's diet, when your child has kidney failure.