We have analysed 20 out of 245 patients with newly diagnosed chronic phase CML that had a still palpable spleen at 3rd month of imatinib therapy in terms of treatment response at 18 months from the start of treatment. 8 (40%) patients had achieved treatment response at these time point. Slower spleen shrinkage in patients with newly diagnosed chronic phase CML does not necessarily mean the failure of the therapy. 10.1002/ajh.21689