良性非功能性腺瘤可与其它恶性或良性病变并存，应防止漏诊。
Nonfunctional adenoma might coexist with other malignant or benign lesions which should not be overlooked.
结论CT导引下经胸组织芯肺活检是一种安全、可靠的检查方法，诊断准确率高，特别是在非肺癌的恶性病变和良性肺疾病的特异性诊断中有较高的应用价值。
Conclusions CT guided TCNB is a safe, reliable method with high accuracy in diagnosis and less complications, especially for non lung cancer malignancy and benign lesions.
局限性病变分为“良性肿瘤”、“恶性肿瘤”、“囊性病变”和“其他非肿瘤性病变”四组。
The 208 localized lesions were divided into 4 groups: benign tumors, malignant tumors, cyst lesions and non-neoplastic lesions.
良性肿瘤52例（69%）。非肿瘤性病变及良性肿瘤误诊为肿瘤或恶性肿瘤7例（9%）。
Results T here were 23 cases of malignant tumors (31%), 52 of benign tumors(69%) and 7 non-neoplastic changes or benign tumors misdiagnosed of malignant tumors(9%).
良性肿瘤52例（69%）。非肿瘤性病变及良性肿瘤误诊为肿瘤或恶性肿瘤7例（9%）。
Results T here were 23 cases of malignant tumors (31%), 52 of benign tumors(69%) and 7 non-neoplastic changes or benign tumors misdiagnosed of malignant tumors(9%).
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