肺胸膜表面可见乳腺癌转移灶。可引起胸腔积液，包括出血性的渗出物，并且胸水细胞学检查可见癌细胞。
A focus of metastatic carcinoma from breast is seen on the pleural surface of the lung. Such pleural metastases may lead to pleural effusions, including hemorrhagic effusions, and pleural fluid cytology can often reveal the malignant cells.
