sentence: Anal cancer is typically a squamous cell carcinoma that arises near the squamocolumnar area.
sentences_before: Anal cancer' is a type of cancer in the anus. It is caused by colorectal cancer. The etiology, risk factors, clinical progression, staging, and treatment are all different.
sentences_after: Other types of anal carcinoma are adenocarcinoma, lymphoma, sarcoma or melanoma.
concept_name: anal cancer
headings: Anal cancer
categories: Cancer