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Reversible erythrocytosis in a patient with a hydronephrotic horseshoe kidney
R R Bailey1, B I Shand, R J Walker
1Department of Nephrology, Christchurch Hospital, New Zealand.
A 33-year-old man with dystrophia myotonica presented with erythrocytosis and an increased plasma erythropoietin concentration. Investigations showed a horseshoe kidney, one moiety of which was grossly hydronephrotic. Fluid aspirated from the latter had a similar erythropoietin concentration to that in plasma. Following partial nephrectomy, the hematocrit and plasma erythropoietin concentration returned to normal.
A 33-year-old man with dystrophia myotonica presented with erythrocytosis and an increased plasma erythropoietin concentration. Investigations showed a horseshoe kidney, one moiety of which was grossly hydronephrotic. Fluid aspirated from the latter had a similar erythropoietin concentration to that in plasma. Following partial nephrectomy, the hematocrit and plasma erythropoietin concentration returned to normal.