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Neoplasia
Oral manifestations
| Term | Definition |
|---|---|
| Anaplastic | Characterized by a loss of differentiation of cells and their orientation to one another; a characteristic of malignant tumors. |
| Benign | A condition that, if untreated or with symptomatic therapy, will NOT become life threatening. |
| Carcinoma | Malignant tumor of epithelium |
| Dysplasia | Disordered growth; alteration in size, shape, and organization of adult cells. |
| Encapsulated | Surrounded by a capsule of fibrous connective tissue. |
| Hyperplasia | Abnormal increase in the number of cells in an organ or tissue. |
| Leukoplakia | Clinical term used to identify a white, plaquelike lesion of the oral mucosa that cannot be wiped off or diagnosed as any other disease. |
| Malignant | Resistant to treatment; able to metastasize and kill the host; describing cancer. |
| Metastasis | Transport of neoplastic cells to parts of the body remote from the primary tumor and the establishment of new tumors at those sites. |
| Metastatic Tumor | Tumor formed by cells that have been transported from the primary tumor to sites not connected with the original tumor. |
| Neoplasia | New growth; the formation of tumors by the uncontrolled proliferation of cells. |
| Neoplastic | Pertaining to the formation of tumors by the uncontrolled proliferation of cells. |
| Neoplasm Tumor | a new growth of tissue in which growth is uncontrolled and progressive. |
| Nevus | Circumscribed malformation of the skin or oral mucosa presumed to be of hereditary origin; also, a benign tumor of melanocytes (nevus cells) |
| Peripheral | Occurring outside of bone. |
| Pleomorphic | Occurring in various forms. |
| Primary Tumor | Original tumor; the source of metastasis. |
| Sarcoma | Malignant tumor of connective tissue. |
| Tumor | Neoplasm or a swelling or enlargement. |
| Undifferentiated | Absence of normal differentiation; anaplasia; a characteristic of some malignant tumors. |
| Lipoma | A benign tumor of fat. |
| Osteoma | A benign tumor of bone. |
| Squamous cell carcinoma, or an epidermoid carcinoma | A malignant tumor of squamous epithelium. |
| Osteosarcoma (osteogenic sarcoma) | A malignant tumor of bone. |
| Characteristics of benign tumors | Well differentiated, slow growth, mitotic figures rare, usually encapsulated, no metastasis. |
| Characteristics of malignant tumors | Well differentiated to anaplastic, slow to rapid growth, mitotic figures may be numerous, invasive and unencapsulated, metastasis likely. |
| Three different types of epithelial tumors of the oral cavity are: | 1.squamous epithelium 2. salivary gland epithelium 3. odontogenic epithelium |
| Papilloma | A benign tumor of squamous epithelium that presents as a small, exophytic, pedunculated or sessile growth. Most cases found on soft palate or tongue, can affect either sex - any age. |
Created by:
turner16
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