Which of the following anemias is characterized by a triad of megaloblastic anemia, glossitis, and diarrhea?

A Pernicious anemia
B Iron deficiency anemia
C Vitamin B12 deficiency anemia
D Pellagra-associated anemia ✓

Explanation

Pellagra is a disease caused by niacin deficiency, characterized by dermatitis, diarrhea, dementia, and potentially death. The associated anemia can be megaloblastic due to impaired DNA synthesis.

Source

Harrison's Principles of Internal Medicine
Hematology Hematology: Anemia Hematology: Anemia Hard MEDICAL Confidence: medium