摘要目的 观察滤泡性细支气管炎(follicular bronchiolitis,FB)的临床特征、胸部影像学表现和病理改变,以提高临床医生对该病的认识.方法 回顾性分析南京医科大学鼓楼临床医学院2009年5月至2013年7月经胸腔镜肺活检确诊的3例FB患者的临床资料.以"滤泡性细支气管炎"为检索词在中国知网、万方数据库中检索,以"follicular bronchiolitis"为检索词在PubMed和Ovid数据库中检索相关文献,检索时间自1947年1月1日至2015年12月31日,结合文献总结其临床表现、肺功能、影像学及病理特征.结果 3例患者中,男1例,女2例,年龄32~55岁;2例因体检时发现肺部阴影而就诊,1例发热、咳嗽、喘息;肺功能检查示2例通气功能正常、弥散功能降低,1例肺通气及弥散功能均正常;3例胸部高分辨率CT均表现为双肺多发小结节、囊状影、斑片状磨玻璃影、网状影和牵拉性支气管扩张;3例胸腔镜肺活检病理示细支气管壁及其周围淋巴滤泡形成;3例均给予糖皮质激素治疗,其中2例合并使用免疫抑制剂.1~2个月后复查高分辨率CT示3例肺部病变未见吸收,随访2~4年复查高分辨率CT示2例肺部病变未见改变,1例双肺小结节及囊状影增多.共检索到资料较完整的文献17篇,共64例成人FB患者,主要临床表现为咳嗽、呼吸困难;典型的影像学特征为双肺弥漫分布的多发小结节,常伴磨玻璃影、网状影和囊状影等;多数患者给予激素和(或)免疫抑制剂治疗后病情改善.但本文3例经激素和免疫抑制剂治疗后病情未见改善.结论 FB为少见的小气道疾病,临床表现及肺功能无特异性,影像学最常见的表现为双肺多发小结节,可伴囊状影、磨玻璃影及网状影等.外科肺活检(胸腔镜肺活检或开胸肺活检)能获得理想的标本,有助于诊断.FB患者的预后较好,糖皮质激素和免疫抑制剂对FB的疗效尚不明确.

abstractsObjective To improve understanding of the characteristics of follicular bronchiolitis(FB). Methods The clinical data of 3 patients with FB confirmed by thoracoscopic lung biopsy were retrospectively analyzed. A literature search was performed with "follicular bronchiolitis" as the key word in China Knowledge Resource Integrated Database, Wanfang and PubMed, Ovid Database. The time interval was from January 1947 to December 2015. Related articles of FB were retrieved and the clinical, radiographic characteristics and prognosis were analyzed. Results Among the 3 patients, 1 was male and 2 were female, aging 32-55 years. Two patients were asymptomatic, and 1 patient presented with fever, cough and dyspnea. Two patients showed normal pulmonary ventilatory function with decreased diffusive function, and 1 patient showed normal pulmonary function. The predominant HRCT findings were bilateral multiple small nodules and cystic opacities, patchy ground-glass opacities, reticular opacities and traction bronchiectasis. The pathological examination by thoracoscopic biopsy revealed bronchiolar and peribronchiolar lymphoid follicles. All patients were treated with corticosteroids, with 2 patients receiving immunosuppressants. Follow-up HRCT after 1-2 months showed no improvement, and further follow-up HRCT after 2-4 years revealed no change in 2 patients while the other patient had increased pulmonary nodules and cystic opacities. Seventeen articles concerning FB with complete records were included in the literature review. A total of 64 patients were reported in these articles. The typical images were bilateral multiple small nodules and ground-glass opacities, reticular opacities, and cystic opacities. The majority of patients improved after treatment of corticosteroids and (or) immunosuppressants. But our 3 cases showed no improvement. Conclusions FB is a rare small airway disease which has non-specific clinical manifestations and pulmonary function. The most common imaging findings are bilateral multiple small nodules, with cystic opacities, ground-glass opacities, and reticular opacities. Surgical thoracoscopic biopsy can get ideal specimen which is useful for diagnosis. The curative effects of corticosteroids or immunosuppressants on FB need to be further clinically investigated.