Contact the Department of Urology 617-355-7796 Request an Appointment Request a Second Opinion What is a duplex collecting system? In children with a duplex collecting system, also known as ureteral duplication, a kidney has two ureters (tubes that carry …

Contact the Brain Tumor Center 617-355-0462 Fax 617-730-6280 International +1-617-355-5209 Email Email the Brain Tumor Center Request an Appointment Request a Second Opinion What is dysembryoplastic neuroepithelial tumor? A dysembryoplastic …

Contact the Division of Infectious Diseases 617-355-6832 Fax 617-730-0254 Request an Appointment Request a Second Opinion What is diphtheria? A common childhood disease in the 1930s, diphtheria is a bacterial disease that can infect the throat ( …

Contact the Bone Marrow Failure and MDS Program 857-215-1312 Fax 617-751-7046 International +1-617-355-5209 Email bmf_pedi@dfci.harvard.edu Request an Appointment Request a Second Opinion What is dyskeratosis congenita? Dyskeratosis congenita (DC) is a …

Contact the Blood Disorders Center 617-355-8246 Fax 617-730-0641 International +1-617-355-5209 Email Email us Request an Appointment Request a Second Opinion What is Evans syndrome? Evans syndrome is an autoimmune disorder in which antibodies attack red …

Contact the Department of Ophthalmology 617-355-6401 Fax 617-730-0392 International +1-617-355-5209 Monday - Friday 7:00 AM - 8:00 PM Saturday 9:30 AM - 6:00 PM Request an Appointment Request a Second Opinion About eye injuries Often caused by sports or …

Contact the Esophageal and Airway Treatment Center 617-355-3038 International +1-617-355-5209 Request an Appointment Request a Second Opinion What is an esophageal stricture? An esophageal stricture is a narrowing of the esophagus, the tube that connects …

Contact the Congenital Heart Valve Program 617-355-5637 International +1-617-355-5637 Email heartvalve@cardio.chboston.org Request an Appointment Request a Second Opinion What is aortic valve stenosis? The term “stenosis” describes an abnormal narrowing …

Contact Dana-Farber/Boston Children's 617-632-5508 International +1-617-355-5209 Email pedi_onc@dfci.harvard.edu Request an Appointment Request a Second Opinion What is AATD? Alpha-1 antitrypsin deficiency (AATD) is the lack of a protein made by the liver …

Contact the Brain Tumor Center 617-355-0462 Fax 617-730-6280 International +1-617-355-5209 Email Email us Request an Appointment Request a Second Opinion What is an astrocytoma? An astrocytoma is a brain tumor that originates from star-shaped cells called …