This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: miscellaneous, Subject name: Pathology
Hea failure cells are stained by? 
Select and explain. 
A. Alcian blue, B. Silver stains, C. Prussian blue, D. PAS
C: Prussian blue
Answer: C: Prussian blue 
Explanation: Hea failure cells: Hemosiderin-laden macrophages Found in lung affected by CVC lung and not in the hea. Hemosiderin pigment in these cells stains blue with Prussian blue stain (Perl's stain).