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Surgical Oncology Principles

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En bloc Resection

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Surgical removal of the tumor and a contiguous portion of tissue around it, without cutting into the tumor or disrupting the tumor capsule.

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Exenteration

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An extensive surgical procedure that involves removal of the tumor as well as surrounding tissues of a body cavity, such as the pelvis or orbit.

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Margins

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The edge or border of tissue removed during cancer surgery. A 'clear' margin means no cancer cells are found at the outer edge, indicating that all cancer has been removed.

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Lymphadenectomy

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A surgical procedure to remove one or more groups of lymph nodes to determine or stop the spread of cancer.

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Electrosurgery

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Use of high-frequency electrical currents to cut through tissue and/or cauterize blood vessels to minimize bleeding during tumor removal.

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Oncoplastic Surgery

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A surgical approach that combines cancer surgery and plastic surgery techniques to remove cancerous tissue and reconstruct affected parts of the body, particularly in breast cancer.

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Adjuvant Therapy

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Additional cancer treatment given after the primary treatment to lower the risk that the cancer will come back. It may include chemotherapy, radiation therapy, or hormone therapy.

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Sentinel Lymph Node Biopsy

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Diagnostic procedure to identify and remove the first lymph node(s) into which a primary tumor drains (sentinel nodes) to check for the presence of cancer cells.

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Neoadjuvant Therapy

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Treatment given before the main treatment. In cancer surgery, it can include chemotherapy, radiation therapy, or hormone therapy to reduce the size of a tumor before surgical removal.

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Reconstructive Surgery

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Surgery performed to restore the appearance or function of a part of the body after cancer surgery, such as in breast reconstruction after a mastectomy.

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Ablative Surgery

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A procedure that involves removal of a body part or tissue, which can include amputation, mastectomy, or oophorectomy when treating cancers.

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Debulking Surgery

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Surgery to reduce the size of a tumor when complete resection isn't possible, to alleviate symptoms or enhance the efficacy of adjuvant therapies.

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Metastasectomy

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Surgical removal of metastatic tumors, which are secondary tumors that have spread from the primary site to other parts of the body.

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Laser Surgery

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The removal of or destruction of tissue using a laser, often used to treat cancers on the surface of the body or the lining of internal organs by vaporizing cancer cells.

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Hyperthermic Intraperitoneal Chemotherapy (HIPEC)

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A highly concentrated, heated chemotherapy treatment that is delivered directly to the abdomen during surgery, used primarily for advanced abdominal cancers.

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Brachytherapy

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A form of radiotherapy where a radiation source is placed inside or next to the area requiring treatment, such as using radioactive seeds in prostate cancer.

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Radical Surgery

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A surgical procedure aimed at removing the primary tumor, all involved lymph nodes, and any surrounding tissue that may contain cancer cells.

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Excisional Biopsy

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The removal of an entire lump or suspicious area for the purpose of diagnosis, often followed by microscopic examination of the tissue.

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Palliative Surgery

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Surgery that is done to relieve symptoms or improve quality of life rather than to cure the disease. Often used when the cancer is too widespread to be completely removed.

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Incisional Biopsy

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Removal of a sample of tissue from a body part for diagnosis. The sample may represent the most suspicious part of a tumor when it can't be completely removed.

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Robotic Surgery

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Surgery performed using robotic systems that enhance precision, flexibility, and control during the operation, allowing for minimally invasive procedures.

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Cryosurgery

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The use of extreme cold produced by liquid nitrogen or argon gas to destroy abnormal tissue, including cancer cells.

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Mohs Surgery

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A micrographic surgery used to treat skin cancer where thin layers of cancer-containing skin are progressively removed and examined until only cancer-free tissue remains.

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Salvage Surgery

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Surgery performed after other forms of treatment have failed to eliminate the cancer or when cancer recurs after treatment.

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Endoscopic Surgery

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Surgical procedure using an endoscope to remove tissue or tumors through very small incisions or natural orifices in the body.

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