There are three main treatments of chemotherapy: systemic, regional, and localized.
Systemic chemotherapy refers to drugs that are administered systemically, meaning they are introduced to the entire body. These drugs are usually given by intravenous injection, oral ingestion, or an injection directly into a vein. Systemic chemotherapy is used to treat cancers that have spread to other parts of the body, such as lymphomas, leukemias, and some solid tumors.
Regional chemotherapy is a more targeted approach and is used to specifically target cancerous cells in a certain area of the body. This type of chemotherapy is usually administered by an injection directly into the organ or tissue or by a catheter that delivers drugs directly to a specific area. Regional chemotherapy is often used to treat cancers that have not spread to other areas of the body or to treat cancers that have spread but are still localized.
Localized chemotherapy is a more targeted approach and is used to directly target cancerous cells in a specific area of the body. This type of chemotherapy is usually administered by a surgically implanted device, which delivers drugs directly to the tumor or area of the body. Localized chemotherapy is often used to treat localized cancers that have not spread to other areas of the body.
Each of these three treatments of chemotherapy has its own advantages and disadvantages, and which treatment is best for an individual depends on the type and stage of their cancer. It is important to consult with a knowledgeable doctor to determine the best treatment plan for each individual.