Objective To explore the pathogenesis of juvenile disorders of spine facet joints and to clarify the diagnosis by concluding the clinical and imaging manifestations.Methods Retrospectively analyzed imaging data of 250 patients from 10～30 years with disorders of spine facet joints including X-ray and CT and MRI.Results Reasons of juvenile disorders of spine facet joints has unique imaging manifestations of asymmetric of small joints and joint surface hyperplasia like pen,of nonspecial inflammation in surrounding soft tissue.Conclusions Imaging can diagnose and differentiate diagnosis juvenile disorder of spine facet joints.X-ray is also the primary method.Not only.CT or MRI image can more clearly display the changes of spine facet joints and surrounding soft tissue,but also differentiate diagnosis disc henaiation and other diseases.

Objective: To assess the safety and curative effect of gasless endoscopic selective lateral neck dissection (GESLND) via an anterior chest approach for papillary thyroid carcinoma (PTC). Methods: Eighteen patients with PTC(T1-2N1bM0, size<3.0 cm), having GESLND via an anterior chest approach, were included from November 2008 to December 2016. Results: GESLND via an anterior chest approach was successfully performed in all 18 PTC patients (seven male and eleven female) with 83.3% of T1 and 16.7% of T2. The mean operative time of selective lateral neck dissection was 73 min (range 51-92 min). The mean of intraoperative bleeding was 61.1 ml (range 30-120 ml). No major complications occurred except one transient hypoparathyroidism. No residual thyroid glands were detected on ultrasonography and thyroglobulin was(0.73±0.16)ng/ml three months postoperatively. The median of follow-up was 54.5 months (range 6-104 months). No recurrence disease was observed in any patient on ultrasonography, computer tomography, thyroglobulin or selective iodine-131 scan during the follow-up period. The cosmetic result and functional preservation was excellent, when the assessments were performed three months postoperatively. Conclusion GESLND via an anterior chest approach is feasible and safe for selected PTCs, with superior appearance.