Primary duodenal malignant lymphoma

Primary malignant lymphoma of duodenum (primary malignant lymphoma of duodenum) refers to a malignant tumor that originates from the lymphatic tissue of the duodenal intestinal wall, which is different from systemic malignant lymphoma invasion and secondary intestinal tract Sex lesions. Dawson proposed five diagnostic criteria for primary small bowel malignant lymphoma: ① no body surface lymphadenopathy was found; ② white blood cell count and classification were normal; ③ no X-ray chest mediastinal lymphadenopathy; ④ no affected small intestine and mesenteric area were found during surgery Lesions other than lymph nodes; ⑤ liver and spleen were not invaded.