However, in sarcoidosis and coal worker's pneumoconiosis, septal thickening is usually less extensive than that seen in patients with lymphatic spread of tumor.

然而，在结节病和煤尘肺，间隔增厚常较淋巴管转移癌轻。

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PLC results from hematogenous spread to lung, with subsequent interstitial and lymphatic invasion, or, as in this case, direct lymphatic spread of tumor from hilar or mediastinal lymph nodes.

再次谢谢马哥！PLC可由血道转移，随后是间质浸润、淋巴道转移，或如此例直接由肺门或纵隔淋巴结的转移癌蔓延而来。

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The system is based on the spread of the primary tumor (t), the extent of lymph node involvement (n), and the presence or absence of metastases (m).

系统包括三个部分：原发肿瘤的扩散程度(t)；淋巴结的转移程度(N)和是否有了其他器官的转移(M)。

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Fleming says gastrointestinal hormones, insulin levels, and the physiology of lymphatic flow in obese patients may contribute to the spread of the tumor cells.

CNN: Obese may be less likely to survive pancreatic cancer

Puzzling over this odd result, he speculated that the smaller injections must be missing rare stem cells and that therefore these cells must be required for the long-term survival and spread of a tumor.

FORBES: Cancer Killer

His strategy is unusual among cancer researchers, who have tended to focus on identifying cancer-causing genes rather than writing differential equations to describe the rate of tumor spread.

FORBES: Ideas & Opinions