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Prostate cancer: classification and stage

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Prostate cancer (med. prostate cancer) is a malignant tumor. She begins to develop from the cells of the prostate gland (prostate). Prostate - male sexual organ, which plays an important role in the sexual life of every man. In the event of malignant cells, the tumor develops slowly enough and can not be changed and do not increase in size for several years. But as with any cancer is dangerous and can metastasize throughout the body.

Classification of malignant tumors is dependent on the shape of the tumor and what character placement and malignant cells are glandular structures of the epithelial and connective relationships of components in the tumor itself.

By differentiated (or shared on the same phenotype) forms of cancer include:

  • Adenocarcinoma. Malignant tumor arises from cells of glandular epithelial layer;
  • Carcinoma of squamous cells. Malignant tumor developed from the squamous cells;
  • Tubular carcinoma. Malignant tumor developed from the narrow channels, which are lined with cubic or prismatic epithelial layer. It should be borne in mind that small gaps channels can be placed special secret;
  • Alveolar cell carcinoma. The cancer develops in the end chasiyah departments branching prostate glands.

Statistics says that more than 90% of the cancer develops in the prostate peripheral directly to departments. In contrast, malignant tumors, benign or develop mainly in transient or in the central part of the prostate. A quarter of all reported cases reveal a special combination and cancer and adenoma. This phenomenon is called prostatic hyperplasia.

Stages of Prostate Cancer

In medicine are 4 stages of cancer development, striking a prostate:

Step 1.
There were no clinical manifestations. At this stage, the malignant tumor can be detected only occasionally in the treatment of diseases or extraneous during regular inspection.

Stage 2.
At this stage not difficult urination, also revealed no clinical signs. During a rectal examination may detect a small tight knot, which is located in the prostate gland. The final diagnosis is made after a biopsy. At this stage, the occurrence and spread of metastases are rare.

Step 3.
Manifest frequent desires in a toilet, and hematuria. Increases in the size of the cancer, grows at the base of the bladder or in the field of the seminal vesicles. In more than 50% of cases are detected metastases (in the area of ​​the pelvic lymph nodes, retroperitoneal lymph nodes).

Step 4.
The tumor significantly increased has dysuric disorders. Metastases distributed throughout the body - inguinal and iliac nodes, lung, liver, including bone. In the blood, increased levels of acid phosphatase.

Prostate cancer can be a long time their symptoms. Pain in the chest and bones - a sign of the ensuing fourth stage, they are accompanied by the development of metastases. Rapid weight loss is a sure sign of an advanced stage of the disease.

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