pyruvate kinase deficiency of red cells (MONDO_0009950) is a rare, genetic metabolic disorder due to pyruvate kinase deficiency characterized by a variable degree of chronic nonspherocytic hemolytic anemia resulting in a variable clinical manifestations ranging from fatal anemia at birth to a to a fully compensated hemolysis without apparent anemia. Also known as: PK deficiency, Pyruvate Kinase Deficiency, anemia, congenital, nonspherocytic hemolytic, 2, pyruvate kinase deficient, hemolytic anaemia due to pyruvate Kinase deficiency, hemolytic anaemia due to red cell pyruvate kinase deficiency, hemolytic anemia due to pyruvate Kinase deficiency, hemolytic anemia due to red cell pyruvate kinase deficiency, pyruvate kinase deficiency.