What is rectal adenocarcinoma?

Rectal adenocarcinoma in the early stage without timely surgical treatment, it is easy to lead to cancer cell spread. The main spread routes are direct invasion, blood metastasis, lymph node metastasis, implantation metastasis and nerve sheath metastasis. Lymph node metastasis is the main way of rectal cancer metastasis, mainly related to direct invasion of cancer cells.