Neuroendocrine cancer is a type of cancer that develops in cells of the neuroendocrine system, which is a network of glands and nerve cells that produce hormones to regulate bodily functions. These cancers can occur in various parts of the body, including the lungs, pancreas, stomach, intestines, and other organs. Neuroendocrine tumors can be either benign or malignant, and can vary in aggressiveness. Symptoms of neuroendocrine cancer can vary depending on the location and size of the tumor, but may include abdominal pain, flushing, diarrhea, and weight loss. Treatment options for neuroendocrine cancer may include surgery, chemotherapy, radiation therapy, and targeted therapies. Prognosis for patients with neuroendocrine cancer can vary depending on the stage of the cancer at diagnosis, but early detection and treatment can improve outcomes.