James Ewing (pathologist)

James Ewing ( born December 25, 1866 in Pittsburgh, † May 16, 1943 in New York) was an American pathologist.

James Ewing studied from 1888 to 1891 Medicine at Columbia University in New York City. In 1899 he was appointed professor of pathology at Cornell University. Ewing was a founding member of the American Association for Cancer Research in 1907 and the American Cancer Society in 1913. Moreover, he was much involved in the establishment of the Memorial Sloan -Kettering Cancer Center in New York. In 1939, Ewing retired from his active scientists activity; he died in 1943 of complications from bladder cancer.

James Ewing was active in many areas of medicine, but his main interest was of hematology and cancer research. He scored a first success with the scientific evidence on the transferability of lymphosarcoma in dogs. In 1920 he published a description of a new type of malignant bone cancer, which is now known as Ewing 's sarcoma.