23例细支气管肺泡癌胸部CT和HRCT分析

Features of CT and HRCT of bronchioloalveolar carcinoma

目的:分析细支气管肺泡癌的胸部CT和HRCT的影像学特征,提高肺泡癌的诊断水平。方法:对经病理组织学确诊的23例肺泡细胞癌的临床症状、胸部CT和HRCT的影像学特征进行回顾性分析。结果:在23例肺泡癌中,女性15例占65%,最常见症状是咳嗽。按CT和HRCT特征将病变分为局限型(10例)和弥漫型(13例)。局限型呈胸膜下分布,含磨玻璃密度结节和实性结节,有分叶、毛刺、胸膜凹陷征、空泡征和细支气管充气征等。弥漫型可见肺实变征或多发性结节改变。实变区内可见枯树枝征、蜂窝征、磨玻璃密度影,腺泡结节分布于实变影的边缘和/或非实变区的肺叶。结论:胸部CT和HRCT的特征性表现有助于肺泡癌的早期诊断。

Objective ： To study the clinical and imageological features of bronchioloalveolar carcinoma analyzing. Methods： Clinical symptom and imageological features was observed in 23 patients of bronchioloalveolar carcinoma who were final diagnosed by pathohistology. Results： The female patients were the majority, 15 cases （65%） in the 23 patients. Cough was the most frequent symptom. The bronchioloalveolar carcinoma were divided into solitary and diffuse types according to features of CT and HRCT. Solitary type was observed in 10 cases, distributed below pleura, and included ground glass or solid density nodule, sublobe, bur, pleural indentation, vacuole sign and air bronchogram in tumor tissue. Diffuse type was observed in 13 cases and showed consolidation of lung or multiple nodule. Dead tree branch, honeycomb, ground glass signs were discovered in consolidation tissue, and gland alveolus nodule distributed in edge of consolidation tissue or pulmonary lobes of unconsolidation tissue. Conclusion： The characteristics of CT and HRCT of chest are helpful for early diagnosis of bronchioloalveolar carcinoma.