This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
33 years old alcoholic on ATT presents with increased serum iron & increased transferrin saturation. Diagnosis ? 
Select and explain. 
A. Iron deficiency anemia, B. Sideroblastic anemia, C. Megaloblastic anemia, D. Anemia of chronic disease
B: Sideroblastic anemia
Answer: B: Sideroblastic anemia 
Explanation: Ans. is 'b' i.e., Sideroblastic anemia This patient is taking anti-tubercular treatment (ATT) which includes INH. o INH can cause pyridoxine deficiency which can result in sideroblastic anemia. o In sideroblastic anemia, serum ferritin, serum iron and transferrin saturation are increased.