BACKGROUND Acute epiploic appendagitis of the appendix (AEAA) is a rare self-limiting inflammatory disorder of the epiploic appendages (EA) close to the vermiform appendix, which often times mimicking the presentation of acute appendicitis (AA). To date, very few cases of AEAA have been reported. We report a case of a 52-year old man with the clinical suspicion of AA, but post-operative specimen examination confirmed AEAA as the final diagnosis. CASE SUMMARY A 52-year-old morbidly obese man presented to the emergency department with a 1-d history of the right lower quadrant (RLQ) abdominal pain. Physical examination revealed localized RLQ tenderness mimicking AA. The computed tomography abdomen was inconclusive, and a decision was made to perform laparoscopic appendectomy (LA). During the LA, an infarcted epiploic appendage at the tip of appendix and adherent to the abdominal wall was found, which was entirely excised. Final pathology showed congested and hemorrhagic epiploic appendage without any accompanied acute inflammatory changes in the wall of the appendix. Postoperative course was uneventful and he was doing well at seven months follow-up. CONCLUSION The possibility of AEAA should be considered in patients clinically suspected of having AA. Surgery is considered for those refractory to conservative management, with inconclusive diagnosis or develop complications at presentation.

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Objective: Iliopsoas abscess is a rare complication of fistulizing Crohn’s disease, which is difficult to diagnose and manage. We report this case to alert clinicians to the diagnosis and management of this unusual association. Case presentation: A 31-year-old male who presented with right groin pain, and hip pain due to an iliopsoas abscess. He was found to have iliopsoas fistula and underlying Crohn’s disease. The right iliopsoas abscess was managed with CT guided percutaneous drainage and pigtail catheter placement and intravenous antibiotics. The patient was started on mesalamine and prednisone. A month later, the patient became symptomatic again and a duodenocolic fistula was found. A laparoscopic extended right hemicolectomy with both fistulas takes-down, end ileostomy and mucus fistula were performed. Pathology revealed chronic active Crohn’s ileocolitis. His ileostomy was reversed three months later. The patient recovered uneventfully and was doing well after six-month follow-up. Conclusions: Iliopsoas abscess can be a rare presentation of Crohn’s disease. Evaluation with CT imaging, and initial management with drainage and antibiotics are recommended. Surgical intervention should be considered early for impending arthritis.