What is esophageal cancer

What is esophageal cancer, esophageal cancer (Carcinomaofesophaus) is one of common malignant tumors in humans. The World Health Organization statistics show that more than 20 million people worldwide each year die from esophageal cancer, with 310,400 new cases, while China occupies 16.72 million. China is a country prone to esophageal cancer, but also the countries with the highest mortality rates. Of esophageal cancer is a common malignancy, accounting for the incidence of gastrointestinal cancer the first one. Men and women the incidence of esophageal cancer incidence accounted for the first 2 and No. 3. Particularly prevalent in northern than southern. Generally more men than women, the vast majority of patients aged over 40 years, younger individual patients.
Esophageal cancer is a malignant tumor in esophageal mucosa. In the upper esophagus, middle and lower distribution have some differences. Statistics show that: the middle of the highest incidence (52.69% 63.33%), followed by lower (24. 95% 38. 93%), the upper minimum II (1. 8% 14. 1%).
Risk factors of esophageal cancer has not yet understood. Is generally believed that long-term heavy smoking and drinking; eating too fast, hot; food excellent, too thick, strong irritant; eat smoked, flooded the system, moldy food, etc., may be the disease causes. And esophagitis, esophageal leukoplakia, corrosive burns the food, the esophagus and esophageal stricture local damage may be precancerous lesions of the disease. Some scholars have pointed morbidity and blood type, A-type than O, the two are very significant differences. In addition, the incidence of esophageal cancer is also with the local mold pollution, malnutrition, vitamin C and vitamin B2 of the lack of trace elements iron, copper, zinc and serum selenium in the lack of low and so on.
Esophageal cancer pathology forms: early: HIDDEN, going to the dogs type, plaque type, papillary type and protruding; in advanced: medullary, fungating, ulcerative, narrow type, cavity type.
Histological types: squamous cell carcinoma of the majority, minority adenocarcinoma, undifferentiated carcinoma, sarcoma. Expansion and transfer method: the esophagus, the proliferation of direct infiltration of adjacent organs, lymph node metastasis and metastasis. Clinically, about 50% of patients in the time of diagnosis, has the blood or lymph node metastasis.
What is esophageal cancer, early medical history of esophageal cancer has been documented, such as "to treat patients on the" that "worry about illness is angry, angry is not flow, so choke, choke who are choking barrier , another record, "Ye Ge who hunger for enriching food, but the inverse of choking in the throat mediastinoscopy meet between the top of the appetite, not the stomach, the band spit out. "These elaborate medicine, esophageal cancer in our study provided valuable information. Thus, esophageal cancer is the medicine" choke breast "disease category.