Leiomyoma and erythrocytosis: a tumor producing a factor which increases erythropoietin production. Report of case.


E RYTHROCYTOSIS has been associated with various types of tumors.1 In some of these cases, the tumor was found to contain a substance which was similar to erythropoietin both immunochemically and in biologic activity. We shall here describe what we believe to be the first reported case of a patient with a leiomyoma of the esophagus and erythrocytosis… (More)


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