Helical CT Evaluation of Acute Right Lower Quadrant Pain: Part I, Common Mimics of Appendicitis

Jinxing Yu; Ann S. Fulcher; Mary Ann Turner; Robert A. Halvorsen

Disclosures

Am J Roentgenol. 2005;184(4):1136-1142. 

In This Article

Mesenteric Adenitis

Mesenteric adenitis represents a benign infection or inflammation of the lymph nodes within the mesentery that results in abdominal pain, often mimicking appendicitis clinically.[7] If the sole finding in patients with RLQ pain is enlarged mesenteric lymph nodes clustered in the RLQ seen in association with a normal appendix, the diagnosis of mesenteric adenitis is highly likely (Fig. 11).

23-year-old man with right lower abdominal pain. Axial CT scan shows several slightly enlarged lymph nodes ( arrows ) in mesentery, medial to right colon (C).

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