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New to MyHealth?

Manage Your Care From Anywhere.

Access your health information from any device with MyHealth. You can message your clinic, view lab results, schedule an appointment, and pay your bill.

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MyHealth for Mobile

The MyHealth mobile app puts all your health information at your fingertips and makes managing your health care simple and quick. Available for iPhone and Android.

Malignant anal tumors

Malignant Anal Tumors

These are cancerous tumors. There are a number of different types, most of which are described in the list below. Other types of malignant anal tumors are very rare.

Squamous cell carcinoma

This is the most common type of tumor. This type of anal cancer begins in the cells that line the anal margin and most of the anal canal. Learn more about squamous cell carcinoma.

Cloacogenic carcinomas (also called transitional cell carcinomas)

These make up most of the remainder of anal cancers. This cancer type affects the cloaca, the bottom part of the large intestine that stores the stool.

Adenocarcinomas

These account for a small number of cases of anal cancer, and affect the anal glands. Paget's Disease (not the same as the Paget's bone disease or Paget's disease of the breast) is a type of adenocarcinoma.

Basal cell carcinoma and melanoma

These are types of skin cancers that can rarely cause anal cancer. Learn more about basal cell carcinoma and melanoma.

Clinical Trials

Clinical trials are research studies that evaluate a new medical approach, device, drug, or other treatment. As a Stanford Health Care patient, you may have access to the latest, advanced clinical trials.

Open trials refer to studies currently accepting participants. Closed trials are not currently enrolling, but may open in the future.

Open Trials Closed Trials

Molecular Genetic and Pathological Studies of Anal Tumors Anal Cancer, Cancer, Colorectal Cancer (Colon Cancer and Rectal Cancer)

Study of Personalized Immunotherapy in Adults With Metastatic Colorectal Cancer Anal Cancer, Liver Cancer, Neuroendocrine Tumors