Differential Diagnosis Of Myelodysplastic Syndrome: Anemia Associated With Copper Deficiency

![Figure][1] An 81-year-old man nourished exclusively by percutaneous endoscopic gastrostomy (PEG) due to complications following surgery was referred for macrocytic anemia and cutaneous hypersensitivity. The laboratory results were as follows: hemoglobin level 8.6 g/dL, mean corpuscular