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Updated: Jun 6, 2026

Murine Mesenteric Lymphadenectomy for Selective Disruption of Lymphatic Communication with Region-Specific Gut
Published on: December 30, 2025
Clinical differentiation between acute appendicitis and acute mesenteric lymphadenitis in children
B Toorenvliet1, A Vellekoop, R Bakker
1Leiden University Medical Center, Surgery, Leiden, The Netherlands. br.toorenvliet@tiscali.nl
Insights
Clinical evaluation alone cannot reliably differentiate acute mesenteric lymphadenitis from acute appendicitis in children. Ultrasound is recommended for diagnosis in uncertain cases, improving accuracy for appendicitis detection.
Area of Science:
- Pediatric Surgery
- Diagnostic Imaging
- Abdominal Pain Management
Background:
- Acute mesenteric lymphadenitis and acute appendicitis share similar clinical presentations in children.
- Accurate differentiation is crucial for appropriate pediatric surgical management.
Purpose of the Study:
- To assess the clinical distinguishability between acute appendicitis and acute mesenteric lymphadenitis in pediatric patients.
- To evaluate the diagnostic performance of clinical parameters, Alvarado score, and ultrasound.
Main Methods:
- Prospective cohort study of children (<17 years) with acute abdominal pain.
- Clinical parameters, diagnoses, and management were prospectively recorded.
- Ultrasound was the primary imaging modality; Alvarado score was calculated retrospectively.
Main Results:
- Out of 289 patients, 38 had acute mesenteric lymphadenitis and 69 had acute appendicitis.
- Clinical diagnosis had a positive predictive value (PPV) of 0.62; Alvarado score had a PPV of 0.81.
- Ultrasound demonstrated a high PPV of 96% for diagnosing acute appendicitis.
Conclusions:
- Clinical evaluation alone is insufficient to reliably differentiate between these two conditions in children.
- Ultrasound is a valuable tool, especially in equivocal cases, for accurate diagnosis.
- Prompt imaging can guide appropriate treatment decisions for pediatric abdominal pain.
Introduction:
Acute mesenteric lymphadenitis in children has a clinical presentation very similar to that of acute appendicitis. The aim of this study was to evaluate whether it is possible to clinically differentiate between acute appendicitis and acute mesenteric lymphadenitis in children.
Methods:
A prospective cohort analysis was performed for all children (<17 years) presenting to the emergency department of our institution with acute abdominal pain between June 2005 and July 2006. The relevant clinical parameters, clinical and radiological diagnoses and all management decisions were scored prospectively. Ultrasound was the primary imaging modality for the majority of patients. All patients were re-evaluated until a final diagnosis was attained. The Alvarado score was calculated retrospectively, and a logistic regression model was used to analyze the diagnostic potential of clinical parameters.
Results:
289 patients were eligible for analysis. 38 patients had acute mesenteric lymphadenitis, and 69 patients had acute appendicitis as a final diagnosis. The positive predictive values of the clinical diagnosis, the Alvarado score and the logistic regression model were 0.62, 0.81 and 0.79 respectively. Ultrasound had a positive predictive value of 96% for acute appendicitis.
Conclusion:
It is not possible to accurately distinguish acute mesenteric lymphadenitis from acute appendicitis in children using clinical evaluation alone. Ultrasound should be performed in equivocal cases.
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