《2007ABM 18 FDG-PET技术用于肺癌诊断和分期：临床实践指南》内容预览

Fine needle aspiration (FNA) biopsy is recommended as the first-line diagnostic approach in the workup of SPN. PET should be reserved for those situations in which a biopsy is inconclusive or contraindicated
PET appears to have a high sensitivity and specificity to differentiate benign from malignant lesions as small as 1 cm in size. Lesions less than 1 cm are difficult to categorize as they lack a sufficient mass of metabolically active cells. False-negative results can occur with low-grade malignant tumours due to their lower metabolic activity or with ground-glass opacities as may be seen in bronchoalveolar carcinomas.

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