Intestinal deformation is manifested by pouch elimination, narrowing of the intestinal lumen and shortening of the intestinal canal. It is obvious in the acute stage, and as the inflammation subsides, some of the pouch shape can be restored, but the anomalous grooves on the mucosal surface, etc. are difficult to be restored. Mostly seen in children and adolescents, most primary mesenteric tumors originate from mesenchymal and neural tissues, with the highest incidence of lymphosarcoma. Barium meal examination and barium enema angiography can indirectly show the site and size of tumor, intestinal tube deformation and displacement, etc. So, how should a patient be diagnosed with intestinal tube deformation? When patients visit the clinic, abdominal masses can usually be found. Combined with medical history and other clinical manifestations, such as poor appetite, emaciation, anemia and weakness are some manifestations of systemic reactions of malignant tumors. Blood in stool or black stool indicates that the malignant tumor has invaded the intestinal canal and caused bleeding in the intestinal tract, and occasionally bleeding from mesenteric hemangioma involving the intestinal mucosa is also seen. Some primary mesenteric malignant tumors first show symptoms of the affected airways of their metastases, such as chest tightness and chest pain if they metastasize to the lungs, headache and dizziness if they metastasize to the brain, and then abdominal masses are found later. During physical examination, benign tumors or tumors far from the mesenteric root mostly move in the direction of the mesenteric root, i.e., those of small intestine with mesenteric origin are more active to the left and right and less active to the top and bottom; those of transverse colon with mesenteric origin are more active to the top and bottom and less active to the bottom; those of sigmoid colon with mesenteric origin are mostly located in the lower abdomen, and their mobility varies according to the length of the mesentery, sometimes like ovarian tumors which can be easily pushed, and sometimes they are more fixed. Very few malignant tumors with severe disease will show ascites, increasing abdominal circumference, abdominal venous anger, swelling of lower limbs and pubic area, etc., indicating that the inferior vena cava or iliac vein is compressed, causing impaired blood circulation. For tumors of sigmoid mesenteric origin, tumors can often be found on anal finger examination, and symptoms such as dysuria may also appear. It is important to pay attention to identify tumors of other organs in the abdominal cavity, and it is not too difficult to diagnose intestinal tube deformation, but still need to cooperate with other examinations to avoid misdiagnosis.