Anal cancer is a type of cancer that forms in the tissues of the anus.
Most anal cancers are related to human papillomavirus (HPV) infection.
Signs of anal cancer include bleeding from the anus or rectum or a lump near the anus.
Tests that examine the rectum and anus are used to diagnose anal cancer.
After anal cancer has been diagnosed, tests are done to find out if cancer cells have spread within the anus or to other parts of the body.
Some people decide to get a second opinion.
Certain factors affect the prognosis (chance of recovery) and treatment options.

Bile duct cancer is a rare disease in which malignant (cancer) cells form in the bile ducts.
Having colitis or certain liver diseases can increase the risk of bile duct cancer.
Signs of bile duct cancer include jaundice and pain in the abdomen.
Tests that examine the bile ducts and nearby organs are used to diagnose and stage bile duct cancer.
Different procedures may be used to obtain a sample of tissue and diagnose bile duct cancer.
Certain factors affect prognosis (chance of recovery) and treatment options.

Colon cancer is a disease in which malignant (cancer) cells form in the tissues of the colon.
Health history affects the risk of developing colon cancer.
Signs of colon cancer include blood in the stool or a change in bowel habits.
Tests that examine the colon and rectum are used to diagnose colon cancer.
Certain factors affect prognosis (chance of recovery) and treatment options.

Esophageal cancer is a disease in which malignant (cancer) cells form in the tissues of the esophagus.
Smoking, heavy alcohol use, and Barrett esophagus can increase the risk of esophageal cancer.
Signs and symptoms of esophageal cancer are weight loss and painful or difficult swallowing.
Tests that examine the esophagus are used to diagnose esophageal cancer.
Certain factors affect prognosis (chance of recovery) and treatment options.

Gallbladder cancer is a disease in which malignant (cancer) cells form in the tissues of the gallbladder.
Being female can increase the risk of developing gallbladder cancer.
Signs and symptoms of gallbladder cancer include jaundice, fever, and pain.
Gallbladder cancer is difficult to detect (find) and diagnose early.
Tests that examine the gallbladder and nearby organs are used to detect (find), diagnose, and stage gallbladder cancer.
Certain factors affect the prognosis (chance of recovery) and treatment options.

Gastric cancer is a disease in which malignant (cancer) cells form in the lining of the stomach.
Age, diet, and stomach disease can affect the risk of developing gastric cancer.
Symptoms of gastric cancer include indigestion and stomach discomfort or pain.
Tests that examine the stomach and esophagus are used to diagnose gastric cancer.
Certain factors affect prognosis (chance of recovery) and treatment options.

A gastrointestinal carcinoid tumor is cancer that forms in the lining of the gastrointestinal tract.
Health history can affect the risk of gastrointestinal carcinoid tumors.
Some gastrointestinal carcinoid tumors have no signs or symptoms in the early stages.
Carcinoid syndrome may occur if the tumor spreads to the liver or other parts of the body.
Imaging studies and tests that examine the blood and urine are used to diagnose gastrointestinal carcinoid tumors.
Certain factors affect prognosis (chance of recovery) and treatment options.

Malignant mesothelioma is a disease in which malignant (cancer) cells form in the lining of the chest or abdomen.
Being exposed to asbestos can affect the risk of malignant mesothelioma.
Signs and symptoms of malignant mesothelioma include shortness of breath and pain under the rib cage.
Tests that examine the inside of the chest and abdomen are used to diagnose malignant mesothelioma.
Certain factors affect prognosis (chance of recovery) and treatment options.

Pancreatic cancer is a disease in which malignant (cancer) cells form in the tissues of the pancreas.
Smoking and health history can affect the risk of pancreatic cancer.
Signs and symptoms of pancreatic cancer include jaundice, pain, and weight loss.
Pancreatic cancer is difficult to diagnose early.
Tests that examine the pancreas are used to diagnose and stage pancreatic cancer.
Certain factors affect prognosis (chance of recovery) and treatment options.

Pancreatic neuroendocrine tumors form in hormone-making cells (islet cells) of the pancreas.
Pancreatic NETs may or may not cause signs or symptoms.
There are different kinds of functional pancreatic NETs.
Having certain syndromes can increase the risk of pancreatic NETs.
Different types of pancreatic NETs have different signs and symptoms.
Lab tests and imaging tests are used to diagnose pancreatic NETs.
Other kinds of lab tests are used to check for the specific type of pancreatic NETs.
Certain factors affect prognosis (chance of recovery) and treatment options.

Adult primary liver cancer is a disease in which malignant (cancer) cells form in the tissues of the liver.
There are two types of adult primary liver cancer.
Having hepatitis or cirrhosis can affect the risk of adult primary liver cancer.
Signs and symptoms of adult primary liver cancer include a lump or pain on the right side.
Tests that examine the liver and the blood are used to diagnose adult primary liver cancer.
Certain factors affect prognosis (chance of recovery) and treatment options.

Rectal cancer is a disease in which malignant (cancer) cells form in the tissues of the rectum.
Health history affects the risk of developing rectal cancer.
Signs of rectal cancer include a change in bowel habits or blood in the stool.
Tests that examine the rectum and colon are used to diagnose rectal cancer.
Certain factors affect prognosis (chance of recovery) and treatment options.

Small intestine cancer is a rare disease in which malignant (cancer) cells form in the tissues of the small intestine.
There are five types of small intestine cancer.
Diet and health history can affect the risk of developing small intestine cancer.
Signs and symptoms of small intestine cancer include unexplained weight loss and abdominal pain.
Tests that examine the small intestine are used to diagnose and stage small intestine cancer.
Certain factors affect prognosis (chance of recovery) and treatment options.