We report the results of peripheral blood progenitor cell (PBPC) harvesting in 22 patients with lymphoma who underwent leucapheresis after cells were mobilised using 3 g/m2 cyclophosphamide and G-CSF. In 19 patients, the total CFU-GM collected was greater than 7.5 x 10(4)/kg. These patients underwent successful autologous PBPC transplantation. This group of patients was compared to a historical group of 24 patients with lymphoma who underwent ABMT with the same conditioning chemotherapy. The time to engraftment of neutrophils to 0.5 x 10(9)/l was significantly reduced (median 11 days vs 19 days, P < 0.0001) and consequently in-patient stay was reduced (median 21 days vs 28 days, P < 0.001). Blood product support (median 3 vs 4 units blood, P = 0.02; median 15 vs 40 units platelets, P = 0.005) and use of TPN (median 0 days vs 8 days, P < 0.001) were reduced. We estimate a saving of approximately pounds 2370 per patient using PBPC for autologous transplantation compared to bone marrow progenitor cells. This saving is significant (P < 0.001).