Causes of mesenteric lymphadenitis in children

We know that children's disease resistance and immunity are not as good as those of adults, so children are prone to various diseases. Parents must protect their children's health in daily life. One of the most common symptom in children is abdominal pain. There are many reasons for abdominal pain in children, and one of the main reasons is mesenteric lymphadenitis. Below we will introduce the causes and pathogenesis of mesenteric lymphadenitis.

Mesenteric lymphadenitis is one of the common causes of abdominal pain in children. It is easily confused with acute appendicitis clinically and is more common in children under 7 years old. It is mostly viral infection and occurs frequently during the winter and spring festivals. It often occurs during the course of acute upper respiratory tract infection or is secondary to intestinal inflammation. Typical symptoms are fever, abdominal pain, vomiting, and sometimes diarrhea or constipation. Epidemiology: Clinical reports show that boys are more likely to be affected than girls, and the disease is more common during the winter and spring festivals. It often occurs in complications of upper respiratory tract infections or intestinal infections, and there is a trend of gradual increase.

Causes of mesenteric lymphadenitis in children:

Because the lymphatic drainage of the distal ileum is very rich, there are many lymph nodes in the ileum and colon regions. After an upper respiratory tract infection or intestinal infection, viruses, bacteria and their toxins circulate through the blood to the lymph nodes in this area, causing mesenteric lymphadenitis. Virus-infected patients show mesenteric lymph node hyperplasia, edema, and congestion, but the test results are negative. Mesenteric lymphadenitis caused by Salmonella infection is different from viral lymphadenitis. The lymph nodes invaded by bacteria often show acute inflammatory reactions, bleeding and necrosis in the lymph nodes, and Salmonella can be isolated in the lymph nodes.

Pathogenesis of mesenteric lymphadenitis in children:

The mesenteric lymph nodes in children are distributed along the mesenteric artery and aortic arch and are very abundant. The terminal ileum and ileocecal region, especially the internal substances of the small intestine, often stay at the terminal ileum due to the action of the ileocecal valve. Therefore, intestinal bacteria and viral products are easily received at this place and enter the ileocecal lymph nodes to cause mesenteric lymphadenitis.

In the above article, we introduced a symptom that children are prone to, that is, abdominal pain. We know that one of the main factors causing abdominal pain in children is that they suffer from mesenteric lymphadenitis. The above article analyzes the causes of mesenteric lymphadenitis in children in detail. I hope it will be helpful to everyone.