An unusual case of renal tumor that has recently come under my observation carries so much evidence as to the relation of trauma and tumor formation, as well as to other problems of pathology, that it seems worthy of publication. It concerns a case of primary squamous-cell carcinoma of the kidney, arising as a sequel of renal calculi.
REPORT OF CASE
History.—A man, aged 57, a tailor, entered the Cook County Hospital, June 13, 1921, two weeks before his death, complaining of abdominal pains of six months' duration, associated with frequent burning micturition, and a loss of about 30 pounds (13.6 kg.) in weight. There was no history of pain characteristic of renal colic, although he said that he had suffered from pain over the bladder when he was 20 years old; beyond this there had been no previous illnesses. Venereal infection and alcoholism were denied. He had never