Vascular invasion - through lymphatic and blood vessels - is the major route for cancer spreading to regional lymph nodes and to the rest of the body.
通过淋巴管与血管的血源浸润是癌细胞向局部淋巴结及身体其他部位转移的主要途径。
Conclusion: SCTPA has highly practical value in diagnosing pulmonary vascular diseases and evaluating invasion of pulmonary vessels in lung cancer.
结论：SCTPA对肺血管性疾病及肺癌对血管的侵犯与肺癌可切除性的评估有较高的临床实用价值。
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