PATH 3000 Lecture Notes - Lecture 3: Benign Tumor, Radiation Therapy, Cell Growth
21 Feb 2020
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Path 3000 lecture 3 january 13, 2020 neoplasia i definitions and classifications. Learn key definitions related to neoplasia: understand the basic classification system for benign and malignant neoplasms. Neoplasia: neoplasia means new growth , uncontrolled growth of cells, normal regulation of cell proliferation in tissues fails, cell growth is autonomous, excessive, and disorganized. Tumor comes from the latin word for swelling : a tumor is a proliferation of neoplastic cells that forms a mass, tumor and neoplasm are often used synonymously, but, not all neoplasms are tumors, ex. Leukemia (blood cancer) is a liquid neoplasm, not a mass. Cancer: textbook describes cancer as a synonym for neoplasia. I disagree in current medical practice, the term cancer is typically only applied to malignant neoplasms. Oncology: oncology is the study of neoplasia (typically cancer, clinical oncologists, medical oncologists systemic therapy (chemo/ new target therapy, surgical oncologists surgical resection, radiation oncologists radiation therapy, pathologists tissue diagnosis and classification.
