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Mesenteric adenitis is an inflammation of the mesenteric lymph nodes in the abdomen. It can be caused by the bacterium Yersinia enterocolitica . [ 2 ] If it occurs in the right lower quadrant, it can be mistaken for acute appendicitis , often preceded by a sore throat.
However, it is not specific and can be found in other conditions such as mesenteric oedema, lymphedema, haemorrhage, and presence of neoplastic and inflammatory cells must be excluded. Mesenteric lymph nodes are rarely larger than 10 mm in sclerosing mesenteritis. Larger lymph nodes should prompt further investigations with PET scan or biopsy. [7]
Acute Y. enterocolitica infections usually lead to mild, self-limiting enterocolitis or terminal ileitis and adenitis in humans. Yersiniosis symptoms may include watery or bloody diarrhea and fever, resembling appendicitis, salmonellosis, or shigellosis. After oral uptake, Yersinia species replicate in the terminal ileum and invade Peyer's patches.
Infections such as appendicitis, cholecystitis, pancreatitis, pyelonephritis, Peritonitis, pelvic inflammatory disease, hepatitis, mesenteric adenitis, or a subdiaphragmatic abscess. Perforation of a peptic ulcer, a diverticulum, or the caecum. Complications of inflammatory bowel disease, such as Crohn's disease or ulcerative colitis.
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The mesenteric lymph nodes or mesenteric glands are one of the three principal groups of superior mesenteric lymph nodes and lie between the layers of the mesentery. They number from one hundred to one hundred and fifty, and are sited as two main groups:
The commonly involved lymph nodes are mesenteric nodes and omental nodes. They usually have central areas of caseous necrosis. [2] Peritoneal tuberculosis: Peritoneal tuberculosis most often presents as abdominal pain and ascites. It can occur most commonly following re-activation of a latent focus of tuberculosis. [3]
Children: Gastroenteritis, mesenteric adenitis, Meckel's diverticulitis, intussusception, Henoch–Schönlein purpura, lobar pneumonia, urinary tract infection (abdominal pain in the absence of other symptoms can occur in children with UTI), new-onset Crohn's disease or ulcerative colitis, pancreatitis, and abdominal trauma from child abuse ...