| Term | Definition |
|---|---|
| Intervention group |
The group of patients in a clinical trial that receive the test treatment or approach to care |
| Intraperitoneal chemotherapy |
A way of delivering chemotherapy drugs directly into the abdominal cavity (the space between the abdominal organs and the abdominal muscle) |
| Intravenous chemotherapy |
A way of giving chemotherapy into the bloodstream through a vein |
| Intravenous infusion |
A way of delivering fluids, including drugs, into the bloodstream through a cannula or needle |
| Invasive breast cancer |
Breast cancer that has spread beyond the ducts or lobules of the breast into the breast tissue and/or other parts of the body |
| Invasive cancer |
Cancer that has spread from the original site into surrounding healthy tissue |
| Invasive ductal carcinoma |
Invasive breast cancer that starts in the ducts of the breast |
| Invasive lobular carcinoma |
Invasive breast cancer that starts in the lobules of the breast |
| Isotope |
A radioactive substance |
| Kinefelter's syndrome |
A rare condition affecting 1 in 500 to 1 in 1000 men in which men have two X (female) chromosomes and one Y (male) chromosome (XXY) instead of a single X and single Y chromosome (XY) |
| Laparotomy |
A surgical incision into the abdominal cavity |
| Latissimus dorsi flap |
A type of breast reconstruction using back muscle transfer; involves moving a flap of muscle, skin and fat from your back to your chest to form a new chest 'mound' |
| Libido |
Sex drive and desire |
| Lobular carcinoma in situ (LCIS) |
Non-invasive breast cancer that is confined to the lobules of the breast |
| Local recurrence |
Breast cancer that comes back in or near the site of the original breast cancer after treatment |