An 81-Year-Old Man With Abnormal Hand Movement and Lung Masses.

An 81-year-old man who currently smokes with a 30-pack-year history presented with involuntary rhythmic motion of his right hand that had started insidiously and progressively worsened over the past 5 months. His medical history included hypertension and dyslipidemia. He did not have a prior history of pulmonary disease and currently denied any shortness of breath or cough. He did however report an unintentional weigh loss of 5 kg within the past few months.