A 51-year-old male presents to your office with left lower abdominal pain, diarrhea, nausea, and vomiting. He states that he has a decreased appetite along with a low-grade fever and chills. His past medical history includes a diagnosis of hypertension and obesity. He is a smoker. Upon arrival, his vital signs are normal aside from a pulse of 102 and a temperature of 100.0. On exam you note the patient is visibly uncomfortable. When you exam his abdomen, you note tenderness and guarding to the left lower quadrant.
What is your diagnosis?
What is your next course of action?
What is your treatment plan?
What potential complications are you concerned about?