). Pyridoxinresponsive anaemia in a patient with a history of polycythaemia vera (Case Report). J Intern Med 1997; 242: 79-81.Pancytopenia in the course of polycythaemia vera (PV) following the proliferative and stable phase, ultimately leads to a spent phase characterized by extensive marrow fibrosis. We describe a patient with a history of PV and pancytopenia caused by myelodysplasia, before a genuine end stage myelofibrosis had occurred. The related anaemia was responsive to pyridoxin.