The secondary type of brain tumors are generally metastatic that invade the intracranial sphere from getting originated in the other parts. the cancerous neoplasm that gets developed inside the brain can get spread anywhere else inside the body and that the cells of the cancerous tissue have got leaked from that primary type of tumor and then get entered to the lymphatic system and the blood vessels of that person. the neoplasms then start circulating through the path of the blood and get deposited in the brain of that particular person.
What Is Brain Tumor Classification
the cells that get accumulated in the brain keep on dividing themselves and thus keep on growing and dividing interrupting the entire functioning of the brain and thus become another invasive neoplasm of the prim nary cancer tissue in that particular person.
the secondary type of tumors being very common ones in the terminal phase of the patients with n incurable metastatised cancer, the most common types of cancer that brings about the secondary tumors of the brain are lung cancer, the breast cancer the cancer of the kidney the colon cancer and the malignant melanoma. the cancer in the brain may be either cancerous or non – cancerous or either malignant or benign one. the cells in the anaplasia may display a marked pleomorphism .the nucleus in these cases are variable and bizarre in size and shape . the cell nuclei in this case being extremely hyperchromatic or in other words hyperchromatic or darkly strained and enlarged in nature.
the nucleus of such structure may have the size much same as the cytoplasm of the cell whose nuclear –cytoplasmic ratio may be of ratio 1:4 or 1:6. the cells that are extremely big in nature than their surrounding cells may form and posess either one enormous nucleus or several nuclei or syncytia. the processes like invasion or infilteration may even start occurring in some of the cases. the invasion or invasiveness is the spatial expansion of the tumor through un controlled mitosis , in the sence that the neoplasm invades the space occupied by the adjacent tissues in that particular person.
There by making the other tissues to get pushed aside and eventually getting that tissue compressed. most often the brain type of tumors are related with clearly outlined tumors in the follow up of the approaches like imaging etc.