<prompt> Pancytopenia with hypercellular marrow may be seen due to all of the following except:MyelodysplasiaParoxysmal Nocturnal HemoglobinuriaDyskeratosis congenitaSarcoidosis  <response>: Answer is C Dyskeratosis Congenita Dyskeratosis congenita constitutional aplastic anemia is associated with Pancytopenia and a Hypocellular bone marrow Myelodysplasia, PNH and Sarcoidosis may all be associated with Pancytopenia and a cellular bone marrow 