CAJ | 학술논문

目的：探讨肺炎型肺泡癌(BAC)的 CT 表现特点及 CT 导引穿刺活检的应用价值。方法回顾分析病理证实的14例肺炎型 BAC 的影像学特征。结果14例肺炎型 BAC 中,实变肺组织内支气管充气征10例(71.4%),实变肺组织内蜂房状气腔或空洞征5例(35.7%),实变区周围呈现磨玻璃密度影及多发结节影5例(35.7%)；增强 CT 扫描实变区可见混杂的低密度区内血管造影征11例(78.6%),平均达峰时间为90 s,时间-密度曲线呈速升缓降型9例(64.2%)。结论CT 平扫表现肺段、叶性实变区内蜂窝状气腔及空洞、血管造影征、枯树枝征及周围多发腺泡结节及磨玻璃密度区、增强扫描实变区可见血管造影征,时间-密度曲线呈速升缓降型是肺炎型 BAC 的主要特点；CT 引导肺穿刺活检是较理想的确诊手段,二者结合可以大大提高早期诊断率。
목적：탐토폐염형폐포암(BAC)적 CT 표현특점급 CT 도인천자활검적응용개치。방법회고분석병리증실적14례폐염형 BAC 적영상학특정。결과14례폐염형 BAC 중,실변폐조직내지기관충기정10례(71.4%),실변폐조직내봉방상기강혹공동정5례(35.7%),실변구주위정현마파리밀도영급다발결절영5례(35.7%)；증강 CT 소묘실변구가견혼잡적저밀도구내혈관조영정11례(78.6%),평균체봉시간위90 s,시간-밀도곡선정속승완강형9례(64.2%)。결론CT 평소표현폐단、협성실변구내봉와상기강급공동、혈관조영정、고수지정급주위다발선포결절급마파리밀도구、증강소묘실변구가견혈관조영정,시간-밀도곡선정속승완강형시폐염형 BAC 적주요특점；CT 인도폐천자활검시교이상적학진수단,이자결합가이대대제고조기진단솔。
Objective To evaluate imaging featuers and the application value of CT-guided percutaneous puncture biopsy combined with CT in diagnosing pneumonic type of bronchio-alveolar carcinoma (BAC).Methods The features of CT findings of 14 cases with pathologically-proved pneumonic type of BAC were retrospective analyzed.Results In consolidation of the lung tissue,air bron-chogram,honeycomb or air cavity sign,multiple nodules and/or ground glass opacity,and angiogram sign in contrast-enhance scan-ning were found in 10,5,5,and 1 1 of the 14 patients,mainly manifesting in pneumonic type of BAC.The mean time-to-peak was 90 s.The pattern of time density curve (TDC)was rapidly ascending-slowly descending in 9 cases.Conclusion The significant find-ings of CT for BAC are not only air bronchogram,honeycomb or air cavity sign,multiple nodules and/or ground glass opacity,an-giogram sign but also the pattern of rapidly ascending-slowly descending TDC.CT-guided percutaneous puncture biopsy is helpful in diagnosis and differential diagnosis pneumonic type of BAC.