This is a squamous cell carcinoma of the lung that is arising centrally in the lung (as most squamous cell carcinomas do).It is obstructing the right main bronchus.

• 这是位于肺门处的鳞状细胞癌的大体标本（大多数的鳞状细胞癌都是此型），此癌阻塞了右侧主支气管。