Early symptoms of metastatic small bowel tumors?

summary

Metastatic small intestinal tumors are rare in clinic. They often occur in patients with advanced malignant tumors or extensive metastases, especially those from other gastrointestinal malignancies. Malignant tumors can invade the small intestine through hematogenous, lymphatic and intraperitoneal implantation, especially hematogenous and intraperitoneal implantation. The clinical manifestations included abdominal pain, diarrhea, bleeding, intestinal obstruction, abdominal mass, intestinal perforation and peritonitis. What are the early symptoms of metastatic small bowel tumors? What are the details?

Early symptoms of metastatic small bowel tumors?

Abdominal pain is a common symptom. It can be caused by ulceration on the surface of tumor, intestinal spasm caused by stimulation of intestinal tube, intestinal obstruction or intussusception. When the tumor is huge and protrudes into the intestinal cavity, it can cause intestinal obstruction; Tumor invasion of the intestinal wall can cause intestinal stenosis and obstruction. This kind of obstruction is more common in malignant tumors of the small intestine. Intussusception is mostly caused by benign tumors of the small intestine, which can be acute or repeated chronic. 70% of the cases have varying degrees of abdominal pain. In the early stage, it is mainly caused by tumor induced intestinal peristalsis disorder or pulling mesentery, and the pain site is corresponding to the location of the tumor, Generally, the pain around umbilicus is dull and distending, which is aggravated after eating, and does not attract the attention of the patient. If obstruction or perforation occurs, the abdominal pain is aggravated, and the patient often goes to see a doctor for it.

The second symptom is gastrointestinal bleeding. About 1 / 3-2 / 3 of the patients have bleeding due to tumor surface ulceration. Most of them are occult bleeding. They are manifested as positive fecal occult blood test or black stool. Iron deficiency anemia can also occur for a long time. Intermittent small amount of bleeding or even large amount of fecal blood can occur. Leiomyoma and sarcoma, hemangioma and adenoma, neurofibroma are the most common causes of bleeding, Most of them are long-term occult blood positive, leading to anemia, occasional bloody stool or a large amount of fresh bloody stool, even shock. When a large amount of bleeding occurs, it is accompanied by paroxysmal abdominal pain, bowel sounds, followed by fresh bloody stool. The location and amount of bleeding of the tumor are different. The stool can be brown, brown red, sauce red to bright red. If there is a large amount of bleeding in the terminal ileum, the blood color is bright red, The bleeding rate of smooth muscle tumor, hemangioma and malignant lymphoma is high. The extraluminal smooth muscle tumor may break down occasionally and cause intraperitoneal hemorrhage.

Symptoms three diarrhea, about 1 / 3 of the patients have diarrhea symptoms, due to intestinal irritation or extensive intestinal involvement caused by malabsorption. At the beginning of the disease, the stool was mushy, 4-5 times a day, without obvious mucus and pus. With the development of the disease, the number of stools increased, and the mucus increased.

matters needing attention

If the cancer of other parts of the human body has been transferred to the small intestine, it means that the primary tumor is in advanced stage and cannot be resected. If the metastatic focus is single or limited, resection and anastomosis of diseased intestinal segment can be performed to keep the digestive tract unblocked and relieve obstruction, but it is palliative operation. If the lesion is extensive or the infiltration range is large, the shortcut operation or stoma operation can be performed. If necessary, according to the pathological type, combined with chemotherapy or radiotherapy, can achieve certain curative effect.