Cancer-Related Dictionary

Immuno-oncology is a subfield of medical research that explores the body's immune system's potential to fight cancer. It investigates how cancer manipulates the immune system and ways to harness the immune response to destroy cancer cells. Its therapies have revolutionized cancer treatment.

Immunogenicity refers to the ability of a substance, such as a vaccine or therapeutic protein, to provoke an immune response in the body. This response can be beneficial, as in the case of vaccines, or undesirable, as it can lead to adverse reactions or reduce the effectiveness of treatments.

Immunoglobulin refers to any class of proteins, produced by the immune system, that function as antibodies in the response to an invasion by foreign substances, such as bacteria and viruses. They play a crucial role in identifying and neutralizing these pathogens, enhancing immune responses.

Immunotherapy is a type of medical treatment that uses the body's own immune system to fight diseases, including cancer. This can be done in several ways, including stimulating the immune system to work harder, providing it with components like man-made immune system proteins, or training it to specifically attack cancer cells.

Indolent lymphoma is a type of cancer that affects the lymphatic system. It is characterized by slow growth and progression, which means it often takes years to become serious. Despite its slow nature, it can still require treatment and monitoring.

Infertility is defined as the inability to achieve a successful pregnancy after a 12-month period of appropriately timed, unprotected intercourse. It is well established that it can result from various cancer treatments. Patients who received alkylating agents, cisplatin, and other heavy metal-containing chemotherapy are at risk. Radiation therapy to the hypothalamus/pituitary axis, ovaries, or testes has the potential to significantly increase this risk. One’s own fertility status can be checked via fertility tests but there is no absolute way to test for future fertility potential in either cancer survivors or the general population. Ovarian reserve tests only provide indirect estimates and do not predict natural fertility potential in regularly ovulating women, and likewise, semen analysis cannot absolutely predict sterility in males.

Inflammatory Breast Cancer (IBC) is an aggressive and uncommon type of breast cancer characterized by extensive inflammation and redness in the breast. It progresses rapidly, often making the breast swollen, tender, and appearing infected. IBC accounts for 1-5% of all breast cancer cases, demanding early diagnosis and prompt treatment to optimize patient outcomes.

"Informed consent" is a key principle in healthcare ethics that refers to the patient’s right to make decisions about their treatment. It occurs when a healthcare provider educates the patient about the benefits, risks and alternatives of a proposed procedure or treatment. The patient must comprehend the information, and voluntarily give consent, ensuring their full understanding and agreement to the procedure.

Intraductal papilloma is a small, benign tumor that forms in the milk ducts of the breast, close to the nipple. It might cause nipple discharge and discomfort, but it's not cancerous. However, it can slightly increase the risk of developing breast cancer in the future.

Intrathecal chemotherapy is a type of cancer treatment where chemotherapy drugs are injected directly into the cerebrospinal fluid surrounding the brain and spinal cord. This method is used to target cancer cells in the central nervous system.

Intravenous (IV) refers to a method of delivering medications, fluids, or nutrients directly into a person's bloodstream through a vein, commonly via a needle or tube. It ensures rapid action and precise control over the amount of substance administered. Often used in hospitals or medical facilities for treatments, rehydration, or during surgeries.

Invasive cancer refers to a type of cancer that has spread beyond the layer of tissue where it initially developed and started invading surrounding, healthy tissues. It's also known as infiltrating cancer. Notably, it is more serious than in situ (noninvasive) cancer, which remains within its original location.

Invasive ductal carcinoma (IDC) is the most common type of breast cancer, accounting for about 80% of all cases. It begins in the milk ducts and spreads to surrounding breast tissue. If undetected or untreated, it can also metastasize to other parts of the body, escalating to a potentially life-threatening condition. It can affect both men and women.

Invasive lobular carcinoma (ILC) is a type of breast cancer that starts in the milk-producing glands (lobules) and can spread to other parts of the body. It's the second most common type of breast cancer, accounting for about 10% of all cases. Unlike other types, ILC tends to occur in both breasts simultaneously.

Irinotecan is a type of chemotherapy drug, classified as a topoisomerase I inhibitor. This drug is used primarily in the treatment of cancers, including colorectal and lung cancer. It works by interfering with the replication of cancerous cells, thereby preventing their growth and spread. Irinotecan is commonly administered intravenously.