Objective: To investigate the expression status of P27 protein in squamous cell carcinoma of lung and esophagus.

目的：探讨肺和食道鳞状细胞癌中P27基因蛋白的表达状况。

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Conclusions HPV infection may play an important role in the pathogenesis of squamous cell carcinoma of lung, and HPV infection in lung cancer is related with smoking.

结论HPV感染在肺鳞癌的发病中可能起一定作用，肺鳞癌组织中HPV感染与吸烟有关。

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This is a squamous cell carcinoma of the lung. It is a bulky mass that extends into surrounding lung parenchyma.

恶性肿瘤的另一个特征是浸润周围组织。图示：肺癌沿着支气管蔓延到肺周围。

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Patients with a particular type of lung cancer, called squamous cell carcinoma, were excluded from the trial because a previous study had found that they were more likely than other patients to experience bleeding of the lungs with Avastin therapy.

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