Medicine A stem cell disorder affecting all the three cell lines; platelets, RBCs and leucocytes is – A Hemolytic anaemia B Paroxysmal cold haemoglobinuria C Paroxysmal nocturnal haemoglobinuria D Blackfan Diamond syndrome π‘ Explanation A stem cell disorder affecting all the three cell lines; platelets, RBCs and leucocytes is - β Correct Answer: B. Paroxysmal cold haemoglobinuria