Fig. 4From: Myelopathy due to bilateral symmetrical dumbbell cervical ganglioneuroma in a pediatric neurofibromatosis type 1 patient and rigid posterior instrumentation—a case reporta Lateral cervical spine X-ray showing correction of the deformity with Halo fixation device. b Lateral cervical spine X-ray showing reincrease of cervical kyphosis after removal of halo vestBack to article page