A 54-year-old woman from a rural area passes away following a 1-year history of fatigue, extensive weight loss, and unexplained anemia. She had a long history of alcohol consumption and smoking. A gross specimen of the lung is shown. Which of the following additional findings was most likely to have been seen in this patient?
Decreased serum phosphate
Decreased serum sodium
Migratory thrombophlebitis
Proximal muscle weakness
Violaceous papules on the knuckles
