Prostate cancer is common malignancy male reproductive system. The incidence in China is lower than Europe and the United States, but the upward trend in the past 20 years, the incidence of prostate cancer with age is proportional, according to foreign statistics, males under the age of 50 rare; 50-60 years the incidence of prostate cancer accounted for the majority of about 11% over 70 years old; 80 years old about 3 / 4 of the etiology of prostate cancer is not entirely clear, a lot of tips and sex hormones on the clinical data. May be estrogen and androgen imbalance, especially in male hormones. Studies have found that sexual activity was high in the population, a higher incidence of prostate cancer, and in the generation pill patients after resection rarely occur; in patients with liver cirrhosis, liver inactivation of the reduced ability of estrogen, the female hormone levels, so the incidence of prostate cancer is not high. There is also information indicating that environmental pollution, gonococcal infection, benign prostatic hyperplasia, excessive coffee and alcohol classes, also with the occurrence of prostate cancer.
Features and diagnosis of prostate cancer:
Prostate cancer occurred in the posterior lobe of the disease, but occasionally on both sides of leaves. Prostate cancer is mainly adenocarcinoma, accounting for about 97%, squamous cell carcinoma of Korea is rare. In the early stages of prostate cancer may have no symptoms when the tumor grew to the development of the prostate gland increases to a certain volume, and bladder neck obstruction occurs when the symptoms. At this time there are frequent urination, urgency, slow urine flow, difficulty urinating, or even stay in the urine and other symptoms over a small number of patients may have symptoms of hematuria or a transfer. When oppression or violations of the surrounding lymph nodes or blood vessels, you may experience lower extremity edema, may occur with bone metastasis, such as low back pain, lower limb paralysis.
Features and diagnosis of prostate cancer, digital rectal examination in the diagnosis of prostate cancer is an effective method. Because this species occur in the prostate cancer after the leaves and leaf edges on both sides of the lesion Department of hard, so digital rectal examination to reach nodules. DRE of prostate cancer glands showed increased nodule hard, rugged, central sulcus disappears, glands fixed, sometimes invading the intestinal wall. Such as men over the age of 45 make digital rectal examination screening, early detection of prostate cancer and may improve the cure rate. If that examination found an induration in the prostate, regardless of how parts of its distribution, prominent in the glandular or not, whether the rules should be thought of the possibility of the disease.
Early prostate cancer can be significantly higher degree of malignancy of local infiltration and lymphatic metastasis, tumor often violations of violations of seminal vesicle and rectum rarely bilateral pelvic wall. Along the pelvic lymph node metastasis to nearby lymph nodes, and then transferred to Confucianism, the Confucian general, para-aortic and mediastinal lymph nodes, as well as supraclavicular lymph nodes. Blood of prostate cancer metastasis to bone can also be enlightened, the most common is the pelvis, lumbar spine, femur and ribs. You can also metastasis to the lung from the blood, liver, kidney, brain and other organs.
Early detection of prostate cancer if diagnosed early, you can get better treatment.Features and diagnosis of prostate cancer, commonly used in clinical examination are: (1) ultrasound examination. (2) X-ray contrast examination. (3) radionuclide scan. (4) CT examination. (5) MRI. (6), urine and prostatic fluid cytology. (7) acid phosphatase (PAP) measured. (8), prostate specific antigen (PSA) determination. (9) seminal plasma protein (r-Sm) determined. (10) prostate biopsy.
- Characteristics of prostate cancer