BREAST CANCER BASE

Lung metastasis of breast cancer because more blood circulation channels formed. With breast cancer venous blood into the veins coursing through the lungs, the pulmonary capillary stay and grow, thus penetrating the vascular wall into lung tissue formation of lung cancer metastasis. Metastatic cancer is not as a direct violation of the lung airway epithelium, the clinical manifestations are often different from primary lung cancer in the early transfer of more no clinical signs and symptoms. Most of the patients during routine chest X-ray radiography inspection, they discovered more fat in the lung, ranging from the size of the shadow-like nodules, lesions in the lung was particularly prevalent with the same time. Clinical exclude other infectious diseases circumstances, the combination of the original breast tumor performance that can be diagnosed.

Cancer patients after radical cure, should regularly review, the early detection of cancer recurrence or metastasis, and to determine methods of treatment again.

The current level of the cancer cure is not everyone, of all cancer patients with about 50% can be cured and the long-term survival of opportunities, but there are also about half of the cancer patients in the course of disease recurrence and metastasis appear.

All cancer metastasis is an important one pathological changes. In accordance with the mobile cancer in different ways and can be divided into four categories : local invasion, metastasis, hematogenous metastasis, lymph node metastasis. “局部浸润”是指癌细胞发生恶性增殖，突破了原发器官周边组织的限制，癌细胞从原发灶直接侵入邻近组织器官。 "Cultivation" is in the chest, abdomen and other parts of internal organs (such as the lungs, stomach, liver, etc.) into the cavity cancer, the cancer cells to the body cavity off in the face of growing other organs, forming a broad spread. "Hematogenous metastasis" means cancer cells have entered the blood, with blood circulation spread to the whole body. "Metastasis" refers to enter lymphatic cancer, with lymph return transfer process.