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%).
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%）。
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