What are the differences between gastric SMT and gastric polyps?

　　Gastric SMT refers to submucosal tumors of the stomach. Under normal circumstances, the differences between gastric submucosal tumors and gastric polyps generally include variations in pathology, location, nature, treatment, symptoms, and risk. The specific details are as follows:

　　1. Different Pathology

　　Gastric submucosal tumors are growths that develop beneath the stomach lining, typically originating from tissues within the stomach wall. They are often malignant or potentially malignant. Gastric polyps, on the other hand, are mucosal lesions that are usually benign. They appear as protrusions on the mucosal surface, resembling tumors but typically representing abnormal mucosal growth rather than true neoplasms.

　　2. Different Locations

　　Gastric submucosal tumors are usually located deep within the stomach wall and thus are often not visible during endoscopy. Biopsy or further investigation is typically required during endoscopic examination to determine their nature. Gastric polyps are generally directly visible during gastroscopy, appearing as protrusions on the mucosal surface, sometimes with different colors or shapes.

　　3. Different Nature

　　Most gastric submucosal tumors are malignant and require further evaluation and treatment. In contrast, the majority of gastric polyps are benign, with only a small proportion having potential for malignancy.

　　4. Different Treatments

　　If diagnosed as malignant or having malignant potential, gastric submucosal tumors usually require surgical resection and may need additional adjuvant therapy. Most gastric polyps are benign and can be removed via endoscopic procedures or other methods.

　　5. Symptoms and Risk

　　Because gastric submucosal tumors grow deep within the stomach wall, they often do not cause specific symptoms until reaching an advanced stage, posing a higher potential risk. Gastric polyps generally do not cause significant symptoms, although in some cases they may lead to stomach pain or discomfort. They usually carry a lower potential risk.

　　It should be noted that these are general distinctions. Accurate diagnosis and appropriate treatment must be determined by a physician based on detailed medical history, clinical examination, and imaging results. If any discomfort or symptoms occur, it is recommended to seek timely medical attention at a hospital to avoid serious consequences.