What underlying condition is most likely?
A 62-year-old female presents with fatigue and innumerable pruritic, keratotic lesions on her back and neck which she says developed quite suddenly two months ago. A blood test reveals a microcytic anemia with hemoglobin of 9.1 g/dL. What is the most likely underlying condition?
A. Diabetes mellitus
B. Gastrointestinal malignancy
C. Hematologic malignancy
Find the answer, discuss this case, and more on Figure 1.