title: Polycythemia following renal transplantation.
abstract: Among 60 renal allograft recipients, 3 patients were found to be polycythemic  with hematocrits greater than 55 and were studied extensively with various hematologic and radiographic procedures. None of the patients showed evidence of erythropoietin-secreting malignancies, renal cysts, hydronephrosis, or hypoxemia. All had elevated erythropoietin levels, and 1 showed evidence of platelet trapping in his transplanted kidney, suggesting that the chronic polycythemia may be related to transplant rejection.
mesh_terms: D000328:Adult; D001379:Azathioprine / Q000627:therapeutic use; D002908:Chronic Disease; D003404:Creatinine / Q000097:blood; D005260:Female; D005340:Fibrinogen / Q000378:metabolism; D006801:Humans; D016030:Kidney Transplantation; D008297:Male; D008875:Middle Aged; D011086:Polycythemia / Q000188:drug therapy / Q000209:etiology* / Q000378:metabolism; D011183:Postoperative Complications; D011241:Prednisone / Q000627:therapeutic use; D014184:Transplantation, Homologous
chemical_list: D005340:Fibrinogen; D003404:Creatinine; D001379:Azathioprine; D011241:Prednisone