Cancer Dictionary

Dental oncology is a specialized field of dentistry that focuses on the oral health care of patients who have cancer. It involves the diagnosis, prevention, and management of oral complications related to cancer and its treatment.

Ductal lavage is a medical procedure used to collect cells from the milk ducts of the breast. It involves flushing the ducts with a saline solution to obtain samples for analysis, primarily to assess the risk of breast cancer.

Lymphatic mapping is a medical procedure used to identify the lymph nodes that are the first to receive drainage from a tumor. These nodes, called sentinel lymph nodes, are examined to determine if cancer has spread.

Current ovarian reserve tests include hormonal markers and ultrasonographic markers.  Hormonal markers: are determined in the blood after a blood sample is taken. Suitable markers are FSH (follicle-stimulating hormone), estradiol, inhibin-B, and antimullerian hormone (AMH).  The measurement of FSH levels at 2 or 3 days after the onset of full menstrual flow has been used as a marker of ovarian reserve since the 1980s, based on its association with reproductive outcome. Elevated FSH values are associated with but not always predictive of poor ovarian response and failure to conceive. Estradiol is the natural estrogen of the woman and is responsible for the expression of the female secondary sexual characteristics. It is produced by granulosa cells of the ovarian follicles. Estradiol levels are commonly assessed during the early follicular phase and high levels indicate normal functioning. Inhibin is a peptide hormone with 2 subunits (Alpha and Beta). Inhibin-B is produced by granulosa cells of ovarian follicles and its levels vary during the menstrual cycle. Concentrations of inhibin-B decrease with age and during premature ovarian failure. AMH is a proteohormone and is produced by granulosa cells of the follicles. AMH shows little cycle fluctuation and correlates negatively with the progression of follicle loss and with a woman's age: the higher the AMH, the higher the follicle count.  Ultrasonographic markers: include the antral follicle count (AFC) and the measurement of ovarian volume, both assessed through ultrasound of the ovaries. The AFC describes the number of antral follicles in the ovaries measuring between 2–10mm. The greatest advantage of ultrasonographic markers of ovarian reserve is their non-invasiveness. Both markers exhibit an age-related decline.

Sentinel node mapping is a medical procedure used to identify the first lymph node, known as the sentinel node, that cancer cells are most likely to spread to from a primary tumor. This technique helps doctors determine the extent of cancer spread and plan appropriate treatment.

Surgical staging is a procedure used to determine the extent of cancer spread within the body. It involves a surgeon examining tissues, organs, and sometimes lymph nodes during surgery to assess how far the cancer has progressed. This information helps doctors plan the most effective treatment strategy.

Tissue microarrays are a laboratory technique used to analyze multiple tissue samples simultaneously on a single slide. This method allows researchers to study the expression of proteins or genes in various tissues efficiently, making it a valuable tool in cancer research and pathology.

Transoral robotic surgery is a minimally invasive surgical technique that uses robotic systems to remove tumors or perform procedures in the mouth and throat through the mouth, without external incisions.

A sentinel lymph node biopsy is a surgical procedure used to determine if cancer has spread beyond a primary tumor into the lymphatic system. It involves identifying, removing, and examining the sentinel lymph nodes, which are the first nodes to which cancer cells are likely to spread from a primary tumor.

A thyroid lobectomy is a surgical procedure where one lobe (half) of the thyroid gland is removed. This is often done when there is a suspicious nodule or tumor, or for treating certain thyroid conditions.

A tumor board is a group of medical experts from various specialties who collaborate to discuss and plan the best treatment approach for patients with complex cancer cases. This multidisciplinary team typically includes oncologists, radiologists, pathologists, surgeons, and other healthcare professionals.

A wedge resection is a surgical procedure where a small, wedge-shaped piece of tissue is removed from an organ, often used to treat lung conditions or diagnose lung cancer.

An ultrasound-guided biopsy is a medical procedure where a doctor uses ultrasound imaging to guide a needle to a specific area of the body to collect a tissue sample for examination. This technique helps ensure accuracy and minimize damage to surrounding tissues.