初診時に特異な頚部過伸展位を呈した小児頚椎椎間板石灰化症の1例

Cervical Intervertebral Disc Calcification in a Child with Hyper Extension of Neck. Case Report

　症例は6歳の男児で，初診時に頚部痛，頚部運動制限，発熱を呈した．外傷の既往はなく，上気道炎や髄膜炎などの感染症も否定的であった．神経学的所見は下肢に軽度の深部腱反射亢進を認めるのみであった．単純X線写真にて，C6-7，C7-Th1椎間板に石灰化を認めた．頚部安静，グリソン牽引にて保存的に治療した．9日目には疼痛が改善し，約3週間で頚部運動制限は改善した．発症から約1年後には，単純X線写真上で石灰化は消失した．

　We report the case of a 6-year-old-boy with a calcified intervertebral disc at C6-7 and C7-Th1. He complained of neck pain and had limited neck motion and a fever at the time of the initial examination. There was no history of trauma, and there was no evidence of upper respiratory infection or meningitis. The neurological examination revealed slight hyperreflexia in the lower limbs, and radiographs of the cervical spine showed calcification of the intervertebral disc at C6-7 and C7-Th1. The patient was treated conservatively, and the pain resolved on hospital 9. He recovered normal neck motion 3 weeks later. One year later, the calcification on the radiographs had completely disappeared.