腮腺腺淋巴瘤的CT诊断(1)
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【摘要】 目的 探讨腮腺腺淋巴瘤CT表现与临床特点，以提高其诊断准确率。方法 收集经手术及病理学证实的腮腺腺淋巴瘤患者11例，11例中男9例，女2例，分析病灶部位、数目、形态、大小、密度。结果 11例腮腺腺淋巴瘤中，5例病灶单发，6例多发，共20个病灶，其中13个(65%)病灶位于腮腺后下象限，CT显示病灶呈圆形、椭圆形及分叶状软组织肿块，边缘清晰，密度均匀7个，坏死囊变致密度不均匀13个；增强扫描病灶呈早期均匀强化，以中度强化为主，囊变区不强化。结论 腮腺腺淋巴瘤好发于50岁以上的男性，当肿块发生于腮腺浅叶后下象限，边界清楚，特别是病灶多发并伴局灶性坏死，增强后中度以上强化时应首先考虑本病。
【关键词】
腮腺；腺淋巴瘤；体层摄影术;X线计算机
The CT diagnosis of adenolymphomas in parotid gland
YIN Jun, LI Yihua, XIE Yonggang.
Department of Radiology, Hengli Hospital of Dongguan,Dongguan 523460，China
【Abstract】 Objective To discuss the CT findings and clinical characteristics of adenolymphomas in the parotid gland,and elevate the diagnostic accuracy.Methods 11 patients(9 men,2 woman) of parotid adenolymphomas proved by surgery and pathology were collected. The analysis of imaging characteristics included the position,number, shape, size, density.Results In 11 cases adenolymphomas of the parotid gland,solitary lesion was seen in 5 cases and multiple lesions in 6,altogether 20 lesions,13(65%) lesions were located in the posterior and inferior quadrant of the parotid gland.CT findings：lesions were round,oval or lobulated soft tissue mass with welldefined,homogeneous density(n=7),and inhomogeneous density(n=13)with necrosis or cystic formation.Lesions showed early homogeneous enhancement except the area of cystic changes,mostly with moderate enhancement.Conclusion Adenolymphoma of the parotid gland should be firstly considered when a male patient with the age over 50 years showing welldefined mass lesion (or lesions) located in the posteriorinferior quadrant of parotid gland,especially lesion is multiple and associated with local necrosis and moderate enhancement after administration of contrast medium.
【Key words】
Parotid gland； Adenolymphoma；Tomography;Xray computed
作者单位：523460广东省东莞市横沥医院放射科
腮腺腺淋巴瘤又叫Warthin’s瘤，是腮腺中较为常见的良性肿瘤，发病率约占腮腺肿瘤的5%~10%，仅次于多形性腺瘤，根据流行病学统计，腮腺腺淋巴瘤在国内以广东省的发病率最高，近年来发病率有上升趋势[1]，其术前临床及CT定性诊断有一定难度。我们对11例经CT诊断及手术病理证实的腮腺腺淋巴瘤的影像学资料进行回顾性分析，旨在提高对腮腺腺淋巴瘤CT表现的认识，以提高对本病的诊断准确性。
1 资料与方法
自2004年至2010年共收集病例11例，均经手术及病理证实，男9例(81.8%)，女2例(18.2%)，年龄36~78岁，平均53岁，其中50岁以上9例，占82%。10例为无意中发现耳前下方无痛性肿块，1例伴疼痛来诊。病史2月至5年，平均18月。
采用Siemens欢悦双排螺旋CT机及Toshibaaqullion 64层螺旋CT ......
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