In-vitro growth patterns of bone marrow erythroid progenitors from patients with post-renal transplant erythrocytosis

Erythrocytosis is relatively common after renal transplantation and is associated with a higher risk of thromboembolism. Its aetiology is unclear and there is still debate about the most frequently suggested causes. The culture in vitro of erythroid progenitors is regarded as a useful tool for the differential diagnosis of patients with unclear erythrocytosis. We studied the growth in vitro of bone marrow erythroid progenitors from renal transplant patients with erythrocytosis and controls without erythrocytosis.