A condition clinically resembling acute appendicitis, in which there is inflammation of the mesenteric lymph nodes receiving lymph from the intestine. A septal form, which is frequently fatal, and a milder form, which is self-limited, are caused by yersinia (pasteurella) pseudotuberculosis. ... (12 Dec 1998) ... 
inflammation of the mesenteric lymph nodes, causing pain and swelling resembling that of acute appendicitis.
Type: Term Synonyms: mesenteric adenitis
inflammation of lymph nodes in an abdominal membrane