The tumors usually present as a nodule on the head or neck. The nuclei of the giant tumor cells are irregularly shaped, hyperchromatic, and 2 to 10 times larger than the nuclei of the surrounding cancer cells. Atypical mitoses may be present.
What does hyperchromasia mean?
Pathologists use the word hyperchromasia to describe a nucleus that looks darker than normal when examined under the microscope. Another word for hyperchromasia is hyperchromatic.
What are pleomorphic cells?
Pleomorphic is a word pathologists use to describe a group of cells that are very different from each other in either size, shape, or colour. For example, the cells in a tissue sample would be described as pleomorphic if some of the cells in a tissue sample were small while other were very large.
What is a vesicular nucleus?
Open phase nucleus is also called as vesicular nucleus. This is seen in an actively proliferating or actively synthesizing cell in which nucleus contains prominent nucleoli. It can exhibit marked variation in size and shape, occasionally with very large and bizarre forms.
What is the definition of pleomorphic?
Definition of pleomorphic : able to assume different forms : polymorphic pleomorphic bacteria a pleomorphic sarcoma. Other Words from pleomorphic More Example Sentences Learn More About pleomorphic.
What causes pleomorphism?
Many modern scientists regard pleomorphism as either a bacterium’s response to pressure exerted by environmental factors, such as bacteria that shed antigenic markers in the presence of antibiotics, or as an occurrence in which bacteria evolve successively more complicated forms.
What does hyperchromatic mean?
Medical Definition of hyperchromatic. : of, relating to, or characterized by hyperchromatism hyperchromatic cell nuclei.
What are facts about the nucleus?
Enjoy this list of twenty-five facts about the nucleus. The nucleus was the first cell organelle discovered. In the late 1600s, Antonie von Leeuwenhoek discovered the nucleus in the blood skin cells of fish. In the 1800s Robert Brown found the nucleus in plant cells. The word nucleus is derived from a Latin word nucleus which means ‘kernel’.
What does Hyperchromia mean?
Medical Definition of hyperchromia. 1 : excessive pigmentation (as of the skin) 2 : a state of the red blood cells marked by increase in the hemoglobin content.
What does the name nuclei mean?
In neuroanatomy, a nucleus (plural form: nuclei) is a cluster of neurons in the central nervous system , located deep within the cerebral hemispheres and brainstem. The neurons in one nucleus usually have roughly similar connections and functions.
