An extremely rare disorder of the immune system showing itself with infectious mononucleosis, dysgammaglobulinemia (abnormal levels of certain antibodies), and lymphoma.

A rare inherited disease in boy babies in which the body’s cells that fight off infection from certain bacteria, viruses and fungi are lacking or defective.

X-rays give Lurie Children's radiologists a completely noninvasive way to diagnose or assess problems occurring in various areas of your child's body.