基于磁共振鼻咽癌咽旁间隙侵犯与预后关系的探讨

[目的]探讨基于磁共振鼻咽癌咽旁间隙受侵对预后的影响。[方法]185例M0期鼻咽癌患者,按咽旁间隙的侵犯程度进行划分,无咽旁侵犯记为0级,有咽旁侵犯而无颈动脉鞘区侵犯记为1级,有颈动脉鞘区侵犯记为2级。Kaplan-Meier法计算生存率,Cox模型进行预后多因素分析。[结果]咽旁间隙受侵与颅底骨质破坏有明显相关性（r=0.15,P=0.041）。多因素分析显示咽旁受侵不是独立的预后因素,但颈动脉鞘区受侵是影响鼻咽癌总生存、无远处转移的独立预后因素。[结论]单纯的咽旁受侵不影响预后,颈动脉鞘区受侵是独立预后因素。     

Kimura病的CT、MRI表现

Objective To study the imaging features of Kimura disease to improve diagnostic ability prior to surgery.Methods The clinical manifestations and CT and MR findings of 11 patients with histologically confirmed Kimura disease were retrospectively analyzed.All 11 tumors originated from (or involved)the parotid region in 7 cases, the maxillofacial region in 2 cases, the palate in one case and the groin in one case.Clinically, the lesions showed asymptomatic tumors with the mean clinical course over 2 years.The increase of cosinophilic granulocyte was found in all 11 cases.Results On CT and MRI,5 patients were single masses and others were muhi-nodular masses.The smallest lesion was 6 mm×3 mm,and the largest lesion was 60 mm × 34 mm.The lesions were almost ill-defined in the subcutaneous tissue,especially 10 locating underlying superficialfascia in head and neck.On CT,the lesions showed homogeneous hypodense to the muscle in 9 patients.The lesions appeared isointeuse signal or slightly hypointense on MR T1WI and slightly hyperinteuse on T2WI in 3 patients.All lesions revealed moderate or marked, and homogeneous or inhomngeneous enhancement.Regional lymph nodes (eight cases in the maxillofacial region and one in the groin) enlarged without necrosis and fusion, and with marked enhancement.Conclusion The clinical and imaging findings of Kimura disease have some characteristics, the diagnosis can be made combined with the laboratory examination.