Liver cancer is a disease where malignant (cancerous) cells form in the tissues of the liver. It can be classified into primary liver cancer, which originates in the liver, and secondary liver cancer, which spreads to the liver from another part of the body. The most common type of primary liver cancer in adults is hepatocellular carcinoma (HCC)

Intestinal cancer encompasses cancers of both the small and large intestines (colon and rectum). Symptoms can include abdominal pain, weight loss, and changes in bowel habits. Treatment options, such as surgery, chemotherapy, and radiation therapy, depend on the cancer's stage and location.

Gastric cancer, also known as stomach cancer, is a disease where malignant (cancer) cells form in the lining of the stomach. The stomach is a muscular organ in the upper abdomen that plays a key role in digesting food. Most stomach cancers are adenocarcinomas, which develop in the inner layer of the stomach.

Esophageal cancer is a disease where malignant (cancerous) cells form in the tissues of the esophagus, the tube that carries food from the throat to the stomach. It's a type of cancer that develops in the lining of the esophagus and can spread to other parts of the body.

Pancreatic cancer is a disease where malignant (cancerous) cells form in the tissues of the pancreas. The pancreas is a gland located behind the stomach that plays a crucial role in digestion and blood sugar regulation by producing enzymes and hormones like insulin. Most pancreatic cancers are adenocarcinomas, meaning they originate in the cells that line the pancreatic ducts.

Colorectal cancer is a type of cancer that develops in the colon or rectum. It is a common cancer, often associated with age, with most cases occurring in individuals over 50. Early stages may have no symptoms, but later stages can include blood in the stool, changes in bowel habits, abdominal pain, and unexplained weight loss. Treatment options vary depending on the stage and can include surgery, chemotherapy, and radiation therapy.