Appendiceal Cancer 

The appendix is part of the intestines and colon, which help your body absorb nutrients and get rid of waste. There are two main types of appendiceal cancer: epithelial appendiceal cancer and neuroendocrine appendiceal cancer. Both are rare types of cancer.

Epithelial appendiceal cancer starts in the cells in the lining of the appendix. 

Neuroendocrine appendiceal cancer starts in cells called enterochromaffin cells that make chemicals that help your digestion. This is the most common type of appendiceal cancer.

Symptoms

Many people with appendiceal cancer don't have symptoms until the tumor starts to grow. These symptoms can include:

• Stomach pain
• Bloating
• Feeling like you have a mass in your abdomen or like it's growing
• Feeling full soon after starting eating
• Nausea
• Vomiting

Treatments

Surgery and chemotherapy are the most common treatments for appendiceal cancer:

• In surgery, a doctor will remove your appendix and any other organs or tissue that have cancer cells.
• Chemotherapy might be used when the cancer has started to spread beyond your appendix.

Risk Factors

Things that increase your risk of appendiceal cancer include:

• Smoking
• Age
• A family history of appendiceal cancer
• Certain medical conditions that affect your stomach's ability to produce acid
• Being female