The terms used to describe cancer in word list; M
Malignant. "Having the properties of anaplasia, invasion and metastasis" (these are all characteristics of a tumour that make it capable of causing the death of a patient); a malignant tumour is one which is no longer resembles the cells it was derived from, is invasive at the site where it starts and has the ability to metastasize (or spread) to other organs.
Margins. This is a term used to refer to the edges of the surgical specimen; "clean margins" means that no tumour cells are visible at the edges (sometimes tumours come back despite clean margins); "dirty margins" means that tumour cells are visible at the edges (therefore, tumor cells have been left behind).
Marie Curie (1867–1934); the discoverer of x rays, died of a cancer caused by prolonged exposure to radiation.
Median survival time. A period of time, often measured in months or years, over which 50% of the cancer patients are expected to be alive.
Medullary carcinoma. A malignant epithelial tumour in which the cells form solid sheets and have abundant eosinophilic cytoplasm and large, vesicular nuclei with prominent nucleoli. An intraepithelial infiltrate of lymphocytes is characteristic.
Mesenchymal tumours of the small intestine. A variety of benign and malignant mesenchymal tumours can arise in the small intestine, but the neoplasms that occur in any appreciable numbers are gastrointestinal stromal tumours (GISTs).
Metastasis. "The transfer of disease from one organ or part to another not directly connected to it"; metastasis is the process by which the tumor spreads from one location to another; the most common sites of metastasis are the lungs or lymph nodes; the most common routes of metastasis are the bloodstream and the lymphatics.
Metastatic lesion. The term used for the site of spread.
Medullary. A type of invasive cancer that grows into the normal tissue around it.
Milk ducts; tiny tubes in the breast through which milk flows to the nipple.
Mucinous cystic neoplasms of the pancreas. Cystic epithelial neoplasms occurring almost exclusively in women, showing no communication with the pancreatic ductal system and composed of columnar, mucin-producing epithelium, supported by ovarian-type stroma. According to the grade of intraepithelial neoplasia (dysplasia), tumours may be classified as adenoma, borderline (low-grade malignant) and non-invasive or invasive carcinoma.
No comments:
Post a Comment