Cаse Study. Use this infоrmаtiоn tо аnswer the next 3 questions. Larry is a 65-year-old male who presents with fever, chills, progressive dyspnea, with a productive cough. He expectorates roughly a quarter cup of yellow-green sputum each day for 2 weeks. For the past 4 days, his sputum has become blood-tinged. Larry finds he can't get to his upstairs bedroom without stopping to catch his breath; this change has been happening for about 6 months. Larry didn't seek medical attention until now because he just thought his age was catching up with him. His wife is concerned that Larry has lost 20 lbs over the last 2 months. He came into ER today due to a sore throat, difficulty swallowing, and blood in his sputum. PmHx: Was treated 6 months ago for a suspected chest infection with antibiotics. Larry smoked for 45 years and approximately a pack a day. He quit about 5 months ago when he noticed the shortness of breath. Before retirement, Larry worked both as a farmer and a construction foreman. What is the significance of the difficulty swallowing?