Classification and morphology of tumors

Tumors develop from any tissue of the body, wherein one of the tumor tissue can develop varying degrees of ripeness.

In determining the nature of tumor growth is the main criterion for the morphology tumor.

The existing classification of tumors is based on the principle of a division of histological them benign and malignant. Mature tumor in its structure as close to normal tissues, immature characterized by anaplasia, expressed in varying degrees, and dedifferentiation of cells and tissues, whereby their structure a lesser extent resembles the original organ or tissue, until the complete lack of common features.

Increase dedifferentiation of cells and tissues, and is usually accompanied by a worsening of the clinical manifestations of malignancy. The name is defined by the name of the original tumor tissue or organ with the addition of the end of "ohm": So, swelling of the connective tissue is called leiomyoma, of vascular tissue - angioma, liver cells - hepatoma, etc.. d.