原发性干燥综合征胸部病变的HRCT表现

HRCT Findings of Lung Diseases in Primary Sjgren's Syndrome

目的探讨原发干燥综合征(PSS)胸部病变的高分辨率CT(HRCT)表现。资料与方法22例PSS患者均行HRCT检查。观察11种较常见的HRCT征象的分布情况。结果毛玻璃影13例(59.1%)、实质结节12例(54.5%)及支气管扩张11例(50%)是最多见的3种征象。其他征象有支气管壁增厚6例(27.3%)、肺气肿3例(13.6%)、薄壁囊肿6例(27.3%)、小叶间隔增厚9例(40.9%)、蜂窝肺6例(27.3%)、马赛克灌注7例(31.8%)及胸膜病变6例(27.3%)。其中实质结节以中下叶多见,支气管壁增厚及支气管扩张以中心分布为主,小叶间隔增厚以两下肺多发。结论PSS胸部异常主要表现为气道和间质的病变,HRCT能很好地显示这些病理征象。

Objective To assess HRCT findings of lung abnotmalities in primary Sjrgren＇s syndrome（PSS）. Materials and Methods 22 patients with PSS, including 10 men and 12 women, were retrospectively reviewed. Eleven HRCT patterns were analyzed. Results Ground glass attenuation （ 59. 1% ）, parenchymal nodules （ 54. 5% ） and bronchiectasis （50%） were the three most common findings. The pathological results showed bronchial wall thickening（ 27.3% ）, emphysema（ 13.6% ）, thin walled cysts（27.3% ）, interlobular-septal thickening（40.9% ）, honeycombing （27.3%）, mosaic perfusion （31.8%）and pleural abnormalities （27.3%）. Parenchymal nodules predominantly located in the middle lower lobes. Bronchiectasis and bronchial wall thickening distributed centrally. Interlobular septal thickening located predominantly in the lower lobes. Conclusion Airway diseasse and interstitial diseases are mainly abnormalities in PSS. HRCT candisplay these pathological abnormalities clearly.