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目的:探讨周围型肺错构瘤的HRCT征象,以提高该病诊断水平。方法:回顾性分析我院近14年来经手术及穿刺病理证实的周围型肺错构瘤23例的CT表现。结果:右肺9例(右肺上叶为3例,右肺中叶2例,右肺下叶4例),左肺14例(左肺上叶6例,左肺下叶8例)。5例病灶内含脂肪,7例既有脂肪又有钙化;8例病灶内有钙化,典型爆米花样钙化3例;所有15例钙化病灶中有11例位于中叶和下叶基底段。3例呈均匀软组织密度影,增强呈轻至中度强化。结论:HRCT可以显示肺错构瘤特征性的钙化及脂肪密度影,有助于肺内周围型错构瘤的诊断。有脂肪或既有脂肪又有钙化孤立性肺结节或肿块,可以考虑错构瘤;而非结核好发部位的含钙化弧立性的肺结节,要想到错构瘤诊断。
Objective: To explore the HRCT signs of peripheral pulmonary hamartoma in order to improve the diagnosis of the disease. Methods: CT findings of 23 cases of peripheral pulmonary hamartoma confirmed by operation and puncture pathology in our hospital in recent 14 years were retrospectively analyzed. Results: There were 9 right lungs (3 in the right upper lobe, 2 in the right middle lobe, 4 in the right lower lobe), 14 in the left lung (6 in the left upper lobe and 8 in the left lobe). There were 5 cases of fat containing fat, 7 cases of both fat and calcification; 8 cases of calcification, typical popcorn calcification in 3 cases; all 15 cases of calcified lesions in 11 cases in the middle and lower basal segments. 3 cases were uniform soft tissue density, enhancement was mild to moderate enhancement. Conclusion: HRCT can display the characteristic calcifications and density of lung hamartoma, which is helpful for the diagnosis of perinatal hamartoma. Fat or both fat and calcified solitary pulmonary nodules or lumps, hamartoma can be considered; non-tuberculous sites of calcification arc neutrality of the pulmonary nodules, to think of hamartoma diagnosis.