Appendix cancer

Appendix cancer
Other names	Appendiceal cancer
An excised biopsy of an appendiceal carcinoid tumor
Specialty	Oncology, general surgery
Symptoms	Bloating, discomfort in lower right abdomen, shortness of breath, loss of appetite[1]
Usual onset	~50-55 years old [2]
Types	Colonic-Type Adenocarcinoma, Non-carcinoid Appendix Tumors, Signet-Ring Cell Adenocarcinoma [1]
Risk factors	Smoking, family history, Multiple endocrine neoplasia type 1[3]
Diagnostic method	Biopsy, CT Scan, MRI[1]
Differential diagnosis	Acid reflux, Irritable bowel syndrome, Lactose intolerance, Stomach cancer[1]
Treatment	Appendectomy, chemotherapy, radiation therapy[4]
Prognosis	Five-year survival rate 25-88% (U.S.) [5]
Frequency	~1,000 cases per year (U.S.)[6]
Deaths	Unknown

Appendix cancer, also known as appendiceal cancer, is a very rare malignant tumor that forms in the vermiform appendix.^[7]

Gastrointestinal stromal tumors are rare tumors with malignant potential.^[8] Primary lymphomas can occur in the appendix. Breast cancer, colon cancer, and tumors of the female genital tract may metastasize to the appendix.^[9]