Stomach cancer has metastasized, and it is easiest to metastasize to what place. 30

1. Direct dissemination:

The infiltrative form may develop along the mucosa or serous membrane directly into the stomach wall, esophagus, or duodenum. Once the cancer invades the serosa, it is easy to infiltrate into the surrounding organs or tissues such as the liver, pancreas, spleen, transverse colon, jejunum, diaphragm, omentum and abdominal wall. When cancer cells are shed, they can also be planted in the abdomen, pelvis, ovaries and rectal bladder pits, which is the way stomach cancer cells metastasize.

2. Lymph node metastasis:

Accounting for 70% of metastases, lower gastric cancers often metastasize to subpyloric lymph nodes, subgastric and paraceliac artery nodes, while upper cancers often metastasize to parapancreas, paracardia and gastric lymph nodes. Advanced cancer may metastasize to peri-aorta and supraphrenic lymph nodes. Because of the direct communication between the abdominal lymph nodes and the thoracic duct, they can metastasize to the left supraclavicular lymph nodes, which is also the way gastric cancer cells metastasize.

3. Hematogenous metastasis

Cancer cells can be found in the peripheral blood of some patients, which can metastasize to the liver through the portal vein, and can reach the lungs, bones, kidneys, brain, meninges, spleen, **, etc., which belongs to the metastasis of gastric cancer cells.

The easiest and earliest metastasis site of gastric cancer is liver, bone metastasis, lymph node metastasis, brain metastasis, and gastric cancer is a common malignant tumor of the digestive system. At present, the main methods are surgery, radiotherapy, chemotherapy and traditional Chinese medicine. Depending on the patient's physical condition and tumor stage, it is necessary to develop a comprehensive ** protocol.

It is recommended to actively cooperate with the inspection and **, and focus on light and easily digestible foods.

First of all, we should eat less or no pickled vegetables, do not eat or do not eat smoked and fried food, do not eat moldy food, do not smoke and drink less, develop good eating habits, eat more fresh vegetables and fruits, protect the hygiene of edible water, and actively ** precancerous lesions. People suffering from atrophic gastritis, gastric ulcers, gastric polyps, and pernicious anemia must often go to the hospital for examinations** to eliminate precancerous lesions and prevent the occurrence of gastric cancer.

Hello, lymphatic metastasis is the main metastatic route, the most common, and occurs earlier. Initially, it is mostly confined to the superficial lymph nodes adjacent to the gastric wall, such as gastric curvature, upper and lower pylorus, paracardia and other lymph nodes. Xuexue (stomach cancer insists on a sunny life, Tang Junhua) improved.

Direct spread to adjacent organs and regional lymph node metastasis is the most common metastatic route for gastric cancer.

First it was the peripheral lymph, then the lungs, stomach and liver.

This occurs according to the patient's physical condition, and the metastasis of advanced gastric cancer will cause great difficulty to the patient's **, and will threaten the patient's life safety.

Clinical Super Treasure Book Digestive System - Lecture 1 Test Point 6 Gastric Cancer: Prone Locations, Staging, Metastasis, Clinical Manifestations and Diagnostic Methods, ** Principles.

Gastric cancer is a common digestive tract tumor, and there are roughly four ways to metastasize:

Clause. 1. Direct disseminated metastasis, invasive gastric cancer can develop directly to the stomach wall, esophagus, duodenum along the mucosa or serous membrane, if the tumor invades the surface of the stomach and penetrates the serosa, it can also infiltrate and metastasize to the surrounding organs, and can invade the colon, jejunum, omentum, liver, pancreas and other tissues.

Clause. 2. Lymphatic metastasis accounts for about 70% of gastric cancer metastasis, and the main lymph nodes metastasis in different parts of gastric cancer have slightly different directions.

Clause. 3. Hematogenous metastasis, cancer cells can be found in the peripheral blood of some gastric cancer patients, so that liver metastasis can be achieved, and even metastasis in the lungs, bones, brain, etc.

Clause. 4. Peritoneal implantation metastasis refers to gastric cancer cells infiltrating the serous membrane and falling off into the abdominal cavity to form local tumor implantation. Sometimes metastatic lymph nodes can also rupture, causing cancer cells to fall off, causing implantation and metastasis.

Clause. 5. Gastric cancer can sometimes form skip metastasis, especially for women, it can metastasize to the ovaries, which is called Keukenburg tumor.

No answer]: c

The metastatic routes of gastric cancer are: direct spread to adjacent organs; lymphatic metastases to paragastric and distant anterior lymph nodes (left supraclavicular lymph nodes are the earliest and most common); blood circulation to other organs; Implantation is transferred to the abdominal cavity and pelvis. Therefore, Tong Shuqing chose C for this question.

Answer: B

Lymphatic metastasis is the main metastasis of gastric cancer, which generally metastasizes to the local lymph nodes first, and then to the distant lymph nodes, and the lymphatic system of the stomach is connected to the supraclavicular lymph nodes, which is called virchow lymph nodes when it metastasizes to the place.

Answer]: B Test Center: 1 **:

Helicobacter pylori infection, dietary factors, environmental factors, genetic factors, precancerous changes. The associated factors are: chronic atrophic gastritis with intestinal metaplasia and moderate or higher dysplasia; Broad-based adenomatous polyp 2cm; Gastric ulcer with large diameter; Bile reflux residual gastritis complicated by bibliogastrectomy; Pernicious anemia with significant gastric gland atrophy; Huge gastric mucosal folds. 2 Pathology:

Gastric cancer is commonly found in the antrum, followed by gastric curvature, cardia, corpus and fundus. There are two types: Early gastric cancer:

It is divided into raised (polyp) erect plums, flat (gastritis) and depressed (ulcer). Intermediate and advanced gastric cancer: it can be divided into mushroom umbrella type (or polypoid type), ulcer type, invasive type (also divided into hard cancer, leather stomach), mixed type, and multiple cancer.

3 Tissue typing: adenocarcinoma; undifferentiated adenocarcinoma; mucinous carcinoma, known as signet ring cell carcinoma; Special types of cancer, including adenosquamous cell carcinoma, squamous cell carcinoma, etc. 4 Routes of transfer Direct spread:

The cancer cells spread directly to adjacent organs such as the esophagus, liver, spleen, pancreas, and colon. Lymphatic metastasis: cancer cells metastasize to paragastric and distant lymph nodes through lymphatic vessels, which is the earliest and most common form of metastasis.

Hematogenous metastasis: cancer cells metastasize to the liver, lungs, peritoneum, brain, bone marrow, etc. through the blood circulation. Planting Transfer:

Cancer cells invade the serous membrane and fall off into the abdominal cavity, where they are implanted in the abdominal cavity and pelvis. Female ovaries are implanted with cancer cells and present as solid mucinous carcinoma, called Krukenberg tumor. 5 Symptoms:

Epigastric pain, loss of appetite, nausea and vomiting, hematemesis and melena, systemic symptoms (low-grade fever, fatigue and weakness, weight loss, anemia, hair loss, etc.). 6 Gastroscopy is the most important means to diagnose early gastric cancer. 7．**：

The principle of gastric cancer is to select surgery at an early stage, adopt comprehensive surgery in the middle and advanced stages, and formulate different plans for different conditions of tumors.

Lymph gland metastasis of gastric cancer: It is an important way for gastric cancer to spread, and it occurs early.

Gastric cancer hematogenous metastasis: Some patients may develop gastric cancer cells or cancer clots circulating through the bloodstream to other organs of the body. It can be transferred to the liver, lungs, bones, kidneys, spleen, brain, meninges, **, and the possibility of early detection is also high (Tang Junhua insists on life).

The symptoms of gastric cancer in the early stage are atypical, the younger the age of the patient, the shorter the course of the disease, the shortest course of the disease is only half a year, and a considerable number of patients have metastasis and are more extensive at the time of diagnosis, and cachexia soon appears. The liver and abdominal cavity are common metastasis sites for gastric cancer, and ascites can occur when the abdominal cavity metastasizes extensively, and the left supraclavicular lymph node is also a common metastasis site for gastric cancer.