An HIV-infected man presented with acute onset of right iliac fossa pain. Initial assessment of clinical and computed tomography findings suggested a diagnosis of appendicitis. A macroscopically normal appendix was removed. Further imaging performed postoperatively because of persistent symptoms showed a right iliac fossa mass; culture of pus aspirated from the mass grew group A beta-haemolytic Streptococcus confirming a diagnosis of suppurative iliac lymphadenitis.
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