Presentation
Admitted to the emergency ward with a 3 days history of left lumbar pain. Physical examination revealed a low-grade fever and tenderness and defense with left lumbar localization; laboratory findings revealed a leukocytosis.
Patient Data
Note: This case has been tagged as "legacy" as it no longer meets image preparation and/or other case publication guidelines.

Mass lesion with fat density with a hyperdense rim, anterior to the descending colon.
Case Discussion
Abdominal computed tomography work up showed a mass lesion with fat density anteriorly adjacent to the descending colon, with a hyperdense rim and surrounding stranding.
Antibiotic treatment commenced after radiological assessment of epiploic appendagitis. Clinical improvement was seen on the ninth day from the onset of symptoms.