Hemangioma of a thoracic sympathetic ganglion mimicking a neuroblastoma.

An infant presented with an asymptomatic paraspinal thoracic mass. Chest radiograph and CT scan supported the diagnosis of neuroblastoma, as did the intraoperative gross appearance and location of the mass, which involved the sympathetic chain. However, histologic diagnosis confirmed an isolated hemangioma of the sympathetic ganglion, which has not been reported previously. Hemangioma should be considered in the differential diagnosis of all mediastinal masses.