CAJ | 학술논문

目的探讨腮腺腺淋巴瘤CT双期扫描的表现特点.方法收集经手术病理证实者16例,在注射造影剂后的30 s和120 s扫描,分别为早期和延迟期,对CT扫描的肿瘤层面行实质部分的密度测量.结果 CT表现为病灶大部分位于腮腺尾叶,最大直径为2～5 cm,边界清楚,密度均匀或不均匀,形态圆形,椭圆形,不规则分叶状.增强后可不均匀强化,早期病灶实质部分明显强化,延迟期下降,比较平扫、早期及延迟期强化差值有显著统计学差异.结论双期CT扫描病灶在增强后早期明显强化,延迟期下降,囊状低密度部分无强化为腮腺腺淋巴瘤的特征表现.
목적 탐토시선선림파류CT쌍기소묘적표현특점.방법 수집경수술병리증실자16례,재주사조영제후적30 s화120 s소묘,분별위조기화연지기,대CT소묘적종류층면행실질부분적밀도측량.결과 CT표현위병조대부분위우시선미협,최대직경위2～5 cm,변계청초,밀도균균혹불균균,형태원형,타원형,불규칙분협상.증강후가불균균강화,조기병조실질부분명현강화,연지기하강,비교평소、조기급연지기강화차치유현저통계학차이.결론 쌍기CT소묘병조재증강후조기명현강화,연지기하강,낭상저밀도부분무강화위시선선림파류적특정표현.
Objective To investigate the characteristics of CT two-phase of parotid adenolymphomas. Methods 16 Patients with parotid adenolymphomas underwent two-phase CT.The histopathologic diagnosis was obtained by means of surgical resection in all patients.The MDCT scans were obtained at early and derayed phases with scanning delays of 30 and 120 seconds,respectively.The attenuation change in the tumor parenchyma was measured.Results The most of parotid adenolymphomas were located in the lower-posterior part of the gland.The maximum diameters of the tumors were 2-5 cm,lesions were round,oval or lobulated in shape,well-defined,homogeneous or heterogeneous soft tissue mass.Two-phases CT showed increase in attenuation in the early phases,and decrease in attenuation in the delayed phases.The change of CT numbers was significantly different between the plain scan and the early phases and delayed phases.Conclusion The characteristics of the parotid adenolymphomas with the two-phases CT scanning showed strong enhancement in the early phases,and decrease enhancement in the delayed phases,and cystic area showed unenhancement.