Spontaneous improvement of cervical kyphosis in eosinophilic granuloma: a case report.

We describe the case of a spontaneous improvement of the cervical kyphosis in eosinophilic granuloma with long-term follow-up. A collapse of the C5 vertebral body was confirmed by cervical spine radiography and computed tomography. The patient wore a sterno-occipitalmandibular immobilizer brace for 6 months, and remodeling of the vertebral body was confirmed 18 months after onset. Seven years have passed since the onset of symptoms, and the patient's cervical spine has maintained normal alignment. Management of eosinophilic granuloma of the pediatric cervical spine is still controversial. Conservative treatment suffices as adequate management of cervical eosinophilic granuloma, even with kyphotic deformity.