小儿急性肠系膜淋巴结炎（acute mesenteric lymphadenitis）.docVIP

小儿急性肠系膜淋巴结炎（acute mesenteric lymphadenitis） acute mesenteric lymphadenitis 1 Overview 2 causes of disease 3 pathogenesis 4 symptoms 5 check 6 treatment 7 prognosis Acute mesenteric lymphadenitis (acute, mesenteric, lymphadenitis) is one of the common causes of abdominal pain in children. It is easily confused with acute appendicitis in clinic. It is more common in children under 7 years of age, and most of them are viral infections. It occurs in winter and spring, and is often associated with the course of acute upper respiratory tract infection, or secondary to intestinal inflammation. Typical symptoms include fever, abdominal pain, vomiting, and sometimes accompanied by diarrhea or constipation. Acute mesenteric lymphadenitis and acute nonspecific mesenteric lymphadenitis (acute nonspecific mesenteric lymphadenitis), Brenneman (1921) first proposed the general case of effective drug treatment, a pyogenic abscess formation after mesenteric lymphadenitis, need surgical treatment. Cause of disease Because the lymphatic drainage of the distal ileum is very abundant, the lymph nodes in the ileum and the large intestine are numerous. After the upper respiratory tract infection or the intestinal tract infection, the virus, the bacterium and its toxin along the blood circulation arrives at this area lymph node, causes the mesentery lymphadenitis. The virus infected patients showed mesenteric lymph node hyperplasia, edema, and congestion, but the culture was negative. Salmonella infection caused by mesenteric lymphadenitis is different from viral lymphadenitis, bacterial invasion and the lymph node showed lymph node in acute inflammation, hemorrhage and necrosis could be isolated from Salmonella in lymph nodes. Pathogenesis The mesenteric lymph nodes in children are distributed along the mesenteric arteries and their arterial arches very rich. The end of the ileum and ileocecal region are especially small, and the contents of the small intestine often stay at the end of th