What are the symptoms of digestive tract tumors

Digestive tract tumors have a great impact and harm on our health, so we must pay attention to understanding the cause so that we can treat and solve it correctly. Large digestive tumors often occur in the small intestine and large intestine, especially malignant tumors, which are more serious.

1. Benign and malignant tumors occurring in the small intestine and large intestine. Clinical manifestations vary depending on the nature and location of the tumor. Generally speaking, benign tumors may cause no symptoms or very mild symptoms. Some malignant tumors have no obvious symptoms in the early stages, which affects diagnosis, treatment and prognosis. Among intestinal tumors, the incidence of small intestinal tumors is lower than that of tumors in the esophagus, stomach, and large intestine. The diagnosis can be confirmed through X-ray imaging, gastrointestinal endoscopy and biopsy. Treatment is surgical resection. Benign tumors have a good prognosis.

2. The incidence of small intestinal tumors occurring in the duodenum, jejunum, and ileum accounts for about 36% of gastrointestinal tumors and about 0.2% of systemic tumors. The low incidence rate may be related to the following factors: ① The contents of the small intestine are in liquid state, which can reduce the concentration of carcinogens entering the small intestine; ② The small intestine empties quickly, which reduces the contact time between carcinogens and the small intestine; ③ The small intestine contains protective acids and high concentrations of immunoglobulin IgA, which may dissolve carcinogens; ④ The small intestine may have a special protection system similar to the spleen, which plays a role in defending against tumors. Small intestinal tumors can occur at any age, but are generally seen in middle-aged and elderly people, most commonly between 50 and 70 years old, with the incidence rate being roughly equal between men and women.

3. Among small intestinal tumors, malignant tumors are more common than benign tumors. The more common benign tumors include leiomyoma, lipoma and adenoma, hemangioma is relatively rare, and neurofibroma, fibroma, fibromyoma, etc. are even rarer; among malignant tumors, malignant lymphoma, adenocarcinoma, leiomyosarcoma, etc. are more common. Tumors can occur anywhere in the small intestine, with adenomas and carcinoids more common in the duodenum and other tumors more common in the ileum and jejunum. The tumors are usually solitary but may also be multiple. Multiple malignant tumors are often caused by metastasis of extraintestinal primary lesions.