Microscopically, metastatic adenocarcinoma is seen in a lymph node here.It is common for carcinomas to metastasize to lymph nodes.The first nodes involved are those draining the site of the primary.

• 镜下示淋巴结转移性腺癌，癌最常见转移到淋巴结，最早累及的是原发灶旁引流淋巴结。