Case Presentation: 65-year-old female with a past medical history of hypertension and colonic diverticulosis presented to emergency department with progressively worsening dyspnea for two months. This was associated with orthopnoea and wet cough. Before presentation, she completed a course of Levofloxacin and steroids in an outpatient clinic. On examination, she was hypoxic with basilar crackles [...]