Search results
Results from the WOW.Com Content Network
A neoplasm (/ ˈ n iː oʊ p l æ z əm, ˈ n iː ə-/) [1] [2] is a type of abnormal and excessive growth of tissue. The process that occurs to form or produce a neoplasm is called neoplasia. The growth of a neoplasm is uncoordinated with that of the normal surrounding tissue, and persists in growing abnormally, even if the original trigger is ...
-form: used to form adjectives indicating "having the form of" Latin fōrma, form, shape cruciform, cuneiform, falciform fore-before or ahead Old English fōr(e)-, before, in front of foregut, foreshadow fossa: a hollow or depressed area; a trench or channel Latin fossa, ditch, pit fossa ovalis: front-of or pertaining to the forehead
The word was introduced in English in the modern medical sense around 1600. [27] Cancers comprise a large family of diseases that involve abnormal cell growth with the potential to invade or spread to other parts of the body. [2] [7] They form a subset of neoplasms. A neoplasm or tumor is a group of cells that have undergone unregulated growth ...
Cancers are usually named using -carcinoma, -sarcoma or -blastoma as a suffix, with the Latin or Greek word for the organ or tissue of origin as the root. For example, the most common cancer of the liver parenchyma ("hepato-" = liver), arising from malignant epithelial cells ("carcinoma"), would be called a hepatocarcinoma , while a malignancy ...
anaplasia: the cells in the neoplasm have an obviously different form (in size and shape). Anaplastic cells display marked pleomorphism . The cell nuclei are characteristically extremely hyperchromatic (darkly stained) and enlarged; the nucleus might have the same size as the cytoplasm of the cell (nuclear-cytoplasmic ratio may approach 1:1 ...
The most common symptoms of CNS tumors are headache, vomiting, and nausea. Symptoms vary depending on the tumor and may include unsteady gait, slowed speech, memory loss, loss of hearing and vision, problems with memory, narrowing of visual field, and back pain. Symptoms may also vary greatly between individuals with the same tumor type.
Malignancy (from Latin male ' badly ' and -gnus ' born ') is the tendency of a medical condition to become progressively worse; the term is most familiar as a characterization of cancer. A malignant tumor contrasts with a non-cancerous benign tumor in that a malignancy is not self-limited in its growth, is capable of invading into adjacent ...
Also, anaplastic cells usually fail to develop recognizable patterns of orientation to one another (i.e., they lose normal polarity). They may grow in sheets, with total loss of communal structures, such as gland formation or stratified squamous architecture. Anaplasia is the most extreme disturbance in cell growth encountered in the spectrum ...