腮腺腺泡细胞癌的CT、MRI表现与病理对照分析

发布时间：2018-01-27 15:23

本文关键词： 腮腺腺泡细胞癌体层摄影术 X线计算机磁共振成像　出处：《临床放射学杂志》2014年04期 　论文类型：期刊论文

【摘要】：目的探讨腮腺腺泡细胞癌(ACCP)的CT、MRI表现。方法搜集经手术病理证实的20例ACCP患者的CT和MRI资料(14例CT检查,6例MRI检查),回顾性分析肿瘤的部位、大小、形态、边缘、CT密度或MRI信号及强化形式,并与病理结果相对照。结果 20例均为单发肿瘤,16例位于腮腺浅叶,4例位于腮腺深叶。病灶最大径3 cm者18例,呈边缘光整、类圆形或椭圆形肿块,病灶与周围组织分界清晰;3 cm者2例,呈边缘不光整、不规则分叶状肿块,病灶周围脂肪间隙模糊,其中1例侵犯耳前皮肤,1例包绕下颌后静脉。密度(信号)均匀4例,不均匀16例。14例CT平扫病灶呈稍低密度5例,等密度9例;6例MRI病灶信号T1WI呈等信号,T2WI呈混杂高信号。增强扫描病灶呈明显强化15例,中度强化3例,轻度强化2例。结论 ACCP的影像表现不具有特征性,确诊最终依靠病理,CT、MRI检查可以准确显示病灶的范围,为临床制定治疗方案提供客观依据。
[Abstract]:Objective to investigate the CT and MRI findings of acinar cell carcinoma of parotid gland (ACCP). Methods CT and MRI findings of 20 patients with ACCP proved by operation and pathology were collected. The location, size, morphology, edge CT density or MRI signal intensity and enhanced form of the tumor were analyzed retrospectively in 6 patients with MRI. The results were compared with pathological findings. 16 cases were located in the superficial lobe of parotid gland, 4 cases were located in the deep lobe of parotid gland. 3 cm was found in 2 cases, with irregular lobular mass and blurred fat space around the lesion. One case involved the anterior ear skin in 1 case and surrounded the posterior mandibular vein in 1 case. The density (signal) was uniform in 4 cases. The CT plain scan showed slightly low density in 5 cases and isodensity in 9 cases. In 6 cases of MRI, the signal intensity of T1WI showed mixed hyperintense signal on T1WI, 15 cases showed obvious enhancement on enhanced T1WI, and 3 cases showed moderate enhancement on T1WI. Conclusion the imaging findings of ACCP are not characteristic. To provide objective basis for clinical treatment.
【作者单位】：浙江大学医学院附属第二医院放射科;浙江省肿瘤医院放射科;
【分类号】：R739.8;R730.44;R445.2
【正文快照】： 腺泡细胞癌(acinic cell carcinoma,ACC)是一种少见的涎腺上皮源性恶性肿瘤,占所有涎腺肿瘤的3.4%,涎腺恶性肿瘤的12%~17%,约83%发生在腮腺[1,2]。1953年由Foote和Frazell首次系统描述并命名,过去曾称为腺泡细胞腺瘤、浆液腺泡腺瘤等,1972年在WHO涎腺肿瘤的分类中被列为独立的

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