肺扩张的淋巴管可见来自乳腺浸润性导管癌转移灶。癌经常通过淋巴道转移。前列腺腺癌通过淋巴道转移到肺，肺叶之间和胸膜下的淋巴管中都可见癌细胞。
A nest of metastatic infiltrating ductal carcinoma from breast is seen in a dilated lymphatic channel in the lung. Carcinomas often metastasize via lymphatics. Prostatic adenocarcinoma is famous for metastasizing to the lungs in a "lymphangitic" pattern in which streaks of tumor appear between lung lobules and beneath the pleura in lymphatic spaces.
