Diagnostic classification of tumors, tumor from a different perspective on the classification, the classification million common law are the following:
(1) According to the tumor 's growth characteristics and extent of the damage on the human body, generally divided into benign and malignant tumors. This classification method is most practical significance, because the prognosis of patients can be estimated meter is to determine the main basis for treating million law.
(2) by the body's different organs, system classification, can be divided into head, neck, respiratory, circulatory, digestive, urinary, reproductive endocrinology, bone and skin, soft tissue tumors.
Diagnostic classification of tumors (3) by tumor-derived categories: either benign or malignant tumor, then the source and tissue type organization can be divided into the following: the tumor from the epithelial tissue. Human skin and certain organs, such as the digestive tract, respiratory tract mucosa are called epithelial tissue, benign tumors occurred in these organizations. Called tumor malignancy. Called "malignant cancer is the most common cancer, accounting for more than 85%, such as colon cancer, stomach cancer , bladder papillary carcinoma. In the event of the original embryonic cells or immature mother cells, known as the mother cell to tumor (malignant), such as Wilms tumor (malignant>, neuroblastoma <malignant); as it is called benign benign nephroblastoma or neuroblastoma and other benign. muscle, fat, fibrous tissue, bone, cream, blood vessels, lymph vessels are mesenchymal. by these tissue tumor, benign called "tumor" and malignant called "sarcoma." basically lymphoid tissue malignant tumors. From histology performance, according to whether the RS cells can be divided into true non-Hodgkin's lymphoma and Hodgkin's lymphoma two categories. leukemia is known to most people, the hematopoietic tissue, which also are among leaves the source of the tumor, it is divided into two major categories of acute and chronic. which blood cells according to subjects who were divided into various types of changes. some tumors derived from the composition of many families, such as teratoma, containing skin, hair, fat, bone, cartilage, teeth, brain and other multi-disciplinary components, like a deformed fetus, so called teratomas or mixed tumors, mostly benign tumors. the case is referred to as malignant teratoma malignant, or malignant mixed tumor, often occurs in the ovaries, pelvic and other parts.
Diagnostic classification of tumors (4) In addition toorganizations can be divided into benign and malignant tumors, there are a number of benign and malignant tumors are among the range, corporations are benign, but the cell proliferation activity, but not malignant level. Also part of the tumor is benign in morphology, and indeed in the biological performance of recurrence and metastasis. Pathological diagnosis is difficult to do in the foot as benign or malignant, and so called "critical tumor" or "borderline tumor."