原发性肺淋巴瘤的CT诊断与鉴别

CT Findings and Differential Diagnosis of the Primary Pulmonary Lymphoma

目的分析原发性肺淋巴瘤的CT表现特点,评估CT在其诊断和鉴别诊断中的应用。方法分析18例病理证实的原发性肺淋巴瘤胸部CT资料。结果 CT平扫表现为肺的单发肿块4例,结节6例(其中多发4例),弥漫性多发片状影8例。14例出现充气支气管征,网格样或磨玻璃样周围间质浸润影11例,结节病灶强化明显,全部病例纵隔无淋巴结肿大。结论原发性肺淋巴瘤CT表现特点是大多有充气支气管征或周围间质浸润,无肺门、纵隔淋巴结肿大,无肺外淋巴肿大。

Objective To analyze the CT finding’s characteristics and to evaluate its value in diagnosis and differential diagnosis of primary pulmonary lymphomas. Methods The CT materials of 18 patients with primary pulmonary lymphoma proven pathologically were retrospectively reviewed. Results Pulmonary lesions were depicted as solitary mass （n=4 cases）, nodules （n=6 cases） and multiple patchy opacities （n=8 cases）. Air bronchogram was present （n=14 cases）, interstitial infiltrates findings such as ground-glasses-like （n=11 cases）. The masses and nodules lesions showed obvious enhancement in all 10 cases who received contrasted CT scan. All 18 cases had no lymphadenopathy either in lung and mediastinal or other parts of the body. Conclusion The characteristics of CT findings in primary pulmonary lymphoma include air bronchogram, interstitial infiltrates and no hilar and mediastinal lymphadenopathy.