A patient is brought to the ER by ambulance. The paramedic reports she has intense abdominal pain, trouble breathing, fever, cold sweats, and extreme fatigue. The woman cries out as you grab and roll her from the stretcher to the bed. Upon physical exam, there is a palpable mass on her abdomen that is extremely painful and seems fluid-filled. Drainage reveals an extraordinary amount of purulent material. A chest tube and drain is placed and the patient admitted to observation.

A) Pneumonia
B) Empyema
C) Pyelonephritis
D) Appendicitis