A 52-year-old man with palpitations and a solitary pulmonary nodule.
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A 52-year-old white man presented to a pulmonary clinic for evaluation of a 2.3 × 1.7 cm lung nodule. The patient had originally presented to his cardiologist for palpitations. The palpitations were described as a "fluttering" sensation, occurring daily, more often at rest, but not associated with syncope. At the time, he denied dyspnea, paroxysmal nocturnal dyspnea, or orthopnea. The patient had a coronary artery calcium scoring test done, which revealed a lobulated, well-circumscribed, smoothly marginated lower lobe nodule, and he was sent to a pulmonary clinic for further evaluation. The patient denied shortness of breath, chest pain, cough, wheezing, or hemoptysis. He denied fatigue, night sweats, or weight loss. He had a 1 pack-year smoking history and stopped cigarettes 30 years ago but still smoked two to three cigars monthly. His family history was only significant for early coronary artery disease. He was an avid marathon runner who worked as an athletic equipment manager for a prominent sports team in Arizona.