A 65-year-old woman with rheumatic valvular disease and atrial fibrillation presented with sudden onset of persistent right lower abdominal pain. She had no nausea, vomiting, fever, dysuria or hematuria.

Physical examination : No obvious abdominal or flank tenderness Ultrasonography : slight intestinal dilation Laboratory examination Leukocytosis Mild hematuria Serum creatine level of 1.09 mg/dL D-dimer level of 0.79 mg/L FEU Medication : Anisodamine injection CT : Right renal perfusion How could you diagnose and manage this patient? *This case is from docplexus editorial team for educative purpose only.