Here is an oat cell carcinoma which is spreading along the bronchi.The speckled black rounded areas represent hilar lymph nodes with metastatic carcinoma.

• 这是肺燕麦细胞癌沿着支气管进行扩散的大体标本，可见混浊黑圆形的区域，是癌组织转移到肺门淋巴结产生的。