The difference between benign and malignant tumors
To sum up, benign and malignant tumors in biological characteristics is obviously different, so the impact on the body are also different. Generally benign impact on the body of a small, easy-to-treatment, good effect; more harmful to cancer, the treatment of complex measures, the effect is not enough ideal. If misdiagnosed as benign to malignant tumors, the treatment will be delayed or incomplete treatment, resulting in the recurrence of the transfer. On the other hand, if the benign tumors misdiagnosed as malignant tumors, are bound to be unnecessary, inappropriate treatment, so that patients suffer undue pain, injury and mental burden. Therefore, the difference between benign and malignant tumors, for the correct diagnosis and treatment of important practical significance. The difference between benign and malignant tumors are shown in Table 7-1.

Table 7-1 distinguish between benign and malignant tumors

Benign
  Malignant
 
The degree of differentiation
  Differentiation, small-shaped, with the original form of organization similar to the
  Differentiation is not good, large-shaped, with the original organization of the big differences in shape
 
Nuclear fission
  No or few, but not nuclear fission as pathological
  More common and can be seen as pathological nuclear fission
 
Growth rate
  Slow
  Fast
 
Growth mode
  And expansion of exogenous growth, which often form coated with clear boundaries around the organization in general, it can often push
  Invasive growth and exogenous, which no envelope, and the general surrounding tissue is not clear boundaries, usually can not promote, with the latter every invasive growth
 
Secondary changes
  Sex is rarely Necrosis, bleeding
  Frequent bleeding, necrosis, such as the formation of ulcers
 
Shift
  Does not transfer
  Often transfer
 
Recurrence
  Few post-operative relapse
  After the surgery, such as the treatment of relapsed more
 
Impact on the body
  Smaller, mainly for obstructing the role of local oppression. In the case of vital organs can cause serious consequences
  A larger, with the exception of oppression, outside blockage, but also undermine the primary Department and the Office of the transfer, bleeding caused by necrosis infection or even cachexia
 
 

It must be pointed out, between benign and malignant tumors in some cases there is no absolute limits of its performance of some tumors can be in between, known as borderline tumors (such as borderline ovarian serous papillary mucinous cystadenoma and ). There are malignant tumors such tendency under certain conditions to be able to develop malignant. In cancer, the malignancy has varied, and some earlier transfer, such as nasopharyngeal cancer; some night shift, such as uterine cancer precursors; some rare transfer. In addition, the benign and malignant tumors are not immutable, and some benign, if not treated in time, in some cases can be transformed into malignant tumors, called malignant change (malignant change), such as adenomatous polyposis colon cancer into a hateful. The individual, such as malignant melanoma, sometimes because of the body to strengthen the immune system and other reasons, may stop growing or even spontaneous regression. Another example is found in the children's neuroblastoma (neuroblastoma) of tumor cells in some cases can be developed into a mature nerve cells, and in some cases of metastatic tumor cells can divide continues to mature, so stop tumor growth and self-healing. But this is rare, after all, the vast majority of cancer can be reversed for the healthy, cancer research is one of the important issues.