Review Question - QID 212452

A 33-year-old woman presents to her primary care physician complaining of shortness of breath on exertion, which has progressed over the last year. Review of systems is positive for fatigue. She has not traveled recently but immigrated from Africa 6 years ago. Family history is notable for asthma in her father (diagnosed at age 10) and heart failure in her mother (diagnosed at age 39). Her temperature is 99°F (37°C), blood pressure is 130/80 mmHg, pulse is 80/min, and respirations are 20/min. Chest radiograph is shown below (Figure A). Which pathological process best explains the findings seen in this patient?