The notion of pleomorphism it is used in the field of biology to allude to development of various structural forms of an organism within the framework of its life cycle. This characteristic usually appears on certain plants.
The bacteria , the virus and certain types of cells can also exhibit pleomorphism. The concept, in its broadest sense, refers to the diversity of forms . If we take the case of bacteria of the genus Mycoplasma , thanks to their pleomorphism they can adopt filamentous or cocoid forms.
Pleomorphism is important for cytology and the oncology . Since different studies have found a correlation between the histological morphology of the tumors and their level of malignancy, different studies have been established. graduation systems .
For the analysis of breast carcinoma For example, a system that assigns a score to the characteristics of the tumor is usually appealed. In this context, the nuclear pleomorphism , studying how the size and shape of the neoplastic nuclei vary with respect to the cores normal.
Pleomorphism, for oncological histology, is linked to the variability of shape and size of the nuclei and of the cells usually. In malignant neoplasms, the cells and their nuclei of a tumor mass are changing, a characteristic that allows to determine the histological grade.
The Mexican Microscopy Association , on the other hand, defines pleomorphism as the doctrine holding the capacity of biological transformation of the cells . Therefore, according to pleomorphism, there are cells that can become something different as they grow.