孤立性肺結(jié)節(jié)：良性與惡性對(duì)比(存儲(chǔ)版)
【正文】 chogram seen as a linear lucency (broad arrow) and as a more cystic lucency (small arrow) due to the fact that the bronchus is seen en face. 第十五頁，共三十頁。 Contrast enhancement 比照增強(qiáng) ? Contrast enhancement less than 15 HU has a very high predictive value for benignity (99%). After a baseline scan, 4 consecutive scans at 1 minute interval are performed. 比照增強(qiáng)小于 15HU是良性病變的可能性〔99%〕 第二十二頁，共三十頁。235:259265. ? Indeterminate Solitary Pulmonary Nodules Revealed at PopulationBased CT Screening of the Lung: Using First FollowUp Diagnostic CT to Differentiate Benign and Malignant Lesions Shodayu Takashima et al. AJR 2024。178:10531057 第三十頁，共三十頁。 ? With the increasingly important role of PETCT, we have to be aware of the accuracy of PETCT and we should have an idea about the prevalence of infectious and noninfectious granulomatous disease in the area that we practice. ? 我們應(yīng)該充分意識(shí)到 PETCT的重要性，在實(shí)踐診斷中應(yīng)該注意感染性與 非感染性疾病的流行情況 第二十八頁，共三十頁。 ? On the far left a lesion that only has a groundglass appearance and next to it a lesion that has both groundglass and solid ponents. The likelihood of malignancy is 1:5 for the lesion on the far left and 2:3 for the lesion with both groundglass and solid ponents. 第二十頁，共三十頁。 ? Smooth margins more likely benign unless metastatic in origin ? 邊緣光滑見于良性結(jié)節(jié)，除外轉(zhuǎn)移瘤 第十三頁，共三十頁。 Size 大小 ? A solitary pulmonary nodule (SPN) is defined as a single intraparenchymal lesion less than 3 cm in size and not associated with atelectasis or lymphadenopathy. A lesion greater than 3 cm in diameter is called a mass. 孤立性結(jié)節(jié)定義為小于 3cm，不伴有肺不張、淋巴結(jié)轉(zhuǎn)移，大于 3
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