What are the causes of Horner’s syndrome in children?
Horner’s syndrome can be divided into congenital (from birth) and acquired cases. Congenital Horner’s can result from neck trauma during birth and can be seen in association with a brachial plexus injury on the same side (Klumpke’s palsy). Often there is no apparent cause for congenital Horner’s. Acquired cases can be due to neck trauma, neck surgery, or an abnormality in the chest, neck or brain. In children, Horner’s syndrome may be caused by neuroblastoma, a tumor arising in another part of the body. Although rare, the risk of neuroblastoma is greater with acquired Horner’s syndrome than it is with congenital cases.
