Idiopathic erythrocytosis in a patient on chronic hemodialysis.
A 78-year-old man on hemodialysis presented to our hospital with erythrocytosis. He had started hemodialysis 4 years previously, with a hemoglobin level of 9.8 g/dL, and was administered erythropoiesis stimulating agents and ferrous sulfate. Two years previously, his hemoglobin level increased to 14.5 g/dL and the treatment for anemia was discontinued. He continued hemodialysis thrice weekly; however, the hemoglobin level had increased to 17.0 g/dL at the time of presenting to our hospital. His serum erythropoietin level was 31.4 mIU/mL (range, 3.7-31.5 mIU/mL), carboxyhemoglobin level was 0.6% (range, 0-1.5%), and oxygen saturation in ambient air was 95.4%. The JAK2 V617F mutation was not observed and other bone marrow abnormalities were not identified. The patient was diagnosed with bladder cancer and a transurethral resection was performed. Eight months after the treatment of bladder cancer, his hemoglobin level was 15.1 g/dL, and he was diagnosed with idiopathic erythrocytosis.
Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea.
Dong Hyun
DH
Lee
Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea.
Ji Hye
JH
Min
Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea.
Sang Byung
SB
Bae
Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea.
Hyo Wook
HW
Gil
Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea.
Jong Oh
JO
Yang
Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea.
Eun Young
EY
Lee
Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea.
Sae Yong
SY
Hong
End-stage renal disease; Erythrocytosis; Hemodialysis