A symptom complex simulating appendicitis without inflammation of the appendix.
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enterocolitica is an enteric pathogen which commonly causes acute enteritis associated with fever, bloody diarrhea, and inflammation of lymph nodes which frequently leads to unnecessary laparotomy due to pseudoappendicitis in humans [2].
In contrast, older children and adults often present with a pseudoappendicitis syndrome with right-sided abdominal pain and fever.
In the syndrome of pseudoappendicitis, the distinctive findings found by surgical exploration of severe mesenteric lymphadenitis can be suggestive, but diagnosis would require confirmation by culture of nodes or feces (2,3).
pseudotuberculosis, it also adheres to and penetrates the mucosal surface of the ileum where the bacterium spreads to the mesenteric lymph nodes leading to the more characteristic pseudoappendicitis associated with this species of Yersinia.
Symptoms: Sudden gastrointestinal disease, diarrhea, abdominal pain, fever, pseudoappendicitis
Humans develop various degrees of illness (yersiniosis), from abdominal pain and fever to septicemia, but a mesenteric adenitis that mimics an acute appendicular syndrome (pseudoappendicitis) is the most common clinical presentation.
In the worst cases there can be severe colitis with tenesmus, pseudoappendicitis from mesenteric lymphadenitis, toxic megacolon mimicking acute ulcerative colitis, or bacteremia.
The infection can remain totally asymptomatic for many years or forever or cause cutaneous (itching and rash), abdominal (epigastric pain, pseudoappendicitis, diarrhea), respiratory (cough, recurrent asthma), and systemic (weight loss, cachexia) symptoms that can be enervating.