THE SYSTEM DISEASES OF THE DIGESTIVE SYSTEM : STOMACH CANCER (CANCER VENTRICULI) - etiology, pathogenesis, symptoms and course of, recognition, prediction and prevention
The etiology of gastric cancer, and cancer in General, is unknown.
The pathogenesis is not fully elucidated; he, apparently, is reduced to the transformation of normal gastric cells into malignant. Cancer never occurs in healthy stomach; most often its development is preceded by chronic ISU - or anatsidnyh gastritis. In addition to gastritis, precancerous diseases of the stomach include adenomas, polyps and ulcers.
Symptoms. It is especially important for early detection of gastric cancer, i.e. at the stage when the cancer can be cured; this requires proper accounting and valuation smallest pathological manifestations not only on the part of the stomach, but also from the entire body. Gradually, it is sometimes difficult to be installed beginning, obscure and unusual diarrhoeal disorders (unpleasant belching, feeling of fullness and pressure in the epigastric region, loss of appetite until the aversion to food, nausea, unexplained weakness and weight loss) - basic initial symptoms. The localization of cancer in the pyloric division to those complaints, join pain in the epigastric region of a permanent nature, aggravated after eating, but don't depend on her character. In cancer, cardiac part of the stomach is observed dysphagia (see); there is often vomiting food and a large quantity of decomposed contents of the stomach, especially when a tumor is located closer to the output part, and hematemesis; the latter is sometimes the first symptom of stomach cancer. When the ulcer, followed by cancer, changes the nature of pain, which lose their sharpness and become more permanent. Unexplained anemia and unclear fever are often the only symptoms of stomach cancer. Objectively - opacity hair, yellowish-pale skin, weight loss, General weakness; the language is clean, devoid of epithelium; palpation of the abdomen expressed only in the cases reveals a tumor in complianceaccordance with the location of the stomach in the epigastric region; in the initial stages even with careful palpation of the tumor to probe fails. In the study of gastric contents on an empty stomach often contains a large amount of fluid with the disgusting smell of decayed food, indicating that the motor activity of the stomach. Sometimes the contents of the stomach reminds of the color of coffee grounds because of the presence of altered blood. Microscopically detected sticks Oppler-Boas lactic acid fermentation. After a test Breakfast - lowering gastric acidity up to ahilii. The presence of gastric juice lactic acid is not pathognomonic for gastric cancer. The reaction of occult blood in the stool again sharply positive. Radiographically - filling defect in the stomach.
Course and complications. Just to set the duration of course not, so how to determine the time of onset impossible.
In the course of the disease can be divided into three periods:
Detection of gastric cancer is important in the early stage, i.e. in the period when possible surgical treatment.
Especially carefully it is necessary to observe patients suffering from so-called precancerous diseases:
The study of the subjective complaints of the patient, assessment of all data inspection and palpation, laboratory studies of gastric contents, feces, blood test, x - ray and gastroscopy give an opportunity to establish the nature of the disease.
The prediction depends on timely recognition.
Prevention of gastric cancer is not developed as causal are not known. However, eliminating irritation and detection and timely treatment of precancerous diseases should be considered as a measure of prevention of gastric cancer. Treatment is surgery followed by radiotherapy. In advanced cases is symptomatic, in order to reduce pain drugs.