A patient presents with sudden-onset severe abdominal pain, nausea, and vomiting. On physical examination, you note rebound tenderness and guarding in the right lower quadrant. Laboratory tests reveal an elevated white blood cell count and a shift to the left. 1. Provide a differential diagnosis for this patient's condition, considering both common and less common causes. 2. Describe the key physical examination findings and laboratory tests that can help in the diagnosis. 3. What imaging modalities would you recommend to confirm the diagnosis, and why? 4. Discuss the management options for this patient, including both medical and surgical approaches. 5. Explain the potential complications if this condition is not promptly treated.