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目的探讨腮腺腺淋巴瘤的CT表现,提高对本病的认识。方法回顾性分析经手术病理证实的18例腮腺腺淋巴瘤患者的临床资料和CT表现,各例均行平扫和多期增强扫描。结果 18例患者中,男性15例(83.3%),平均年龄57岁,有长期吸烟史15例(83.3%)。13例(72.2%)表现为耳前下方无痛性肿块。CT检查共发现病灶33个,单发9例,单侧或双侧多发7例(38.9%),病灶位于浅叶后下部者20个(60.6%)。26个病灶呈类圆形或椭圆形(78.8%),29个病灶(87.9%)边缘清晰规整,12个病灶(36.4%)平扫密度均匀。增强扫描29个病灶(87.9%)呈中度或明显强化,9个病灶(27.3%)均匀强化,31个病灶(93.9%)强化峰值出现在动脉期,静脉期和延迟期强化减退。10个病灶(30.3%)出现“贴边血管征”。结论 50岁以上、有长期吸烟史的男性患者,病灶位于腮腺后下部,边缘清晰,早期明显强化,特别是多发病灶,应首先考虑腺淋巴瘤的诊断。
Objective To investigate the CT findings of parotid gland lymphoma and to raise awareness of the disease. Methods The clinical data and CT findings of 18 patients with parotid gland lymphoma proved by surgery and pathology were analyzed retrospectively. All patients underwent plain scan and multi-phase enhanced scan. Results Of the 18 patients, 15 were male (83.3%) with a mean age of 57 years and 15 had long-term smoking history (83.3%). Thirteen (72.2%) showed painless lumps below the ears. A total of 33 lesions were found in CT scan, 9 were single, 7 (38.9%) were unilateral or bilateral and 20 (60.6%) were located in the lower part of the superficial lobule. 26 lesions were round or oval (78.8%), 29 lesions (87.9%) clear and regular edge, 12 lesions (36.4%) even density. Forty-nine lesions (27.3%) were uniformly enhanced in 29 lesions (87.9%) of the contrast-enhanced scans and 31 (93.9%) in the arterial, venous, and delayed phases. Ten lesions (30.3%) appeared “Vascular edge ”. Conclusions Male patients over 50 years of age who have a long history of smoking, the lesion is located in the posterior parotid gland, clear edge, early obvious enhancement, especially in multiple lesions, should first consider the diagnosis of adenolymphoma.