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Philip L. Hooper, MD
Veterans Administration Hospital Albuquerque, NM

JAMA. 1979;241(18):1892-1893.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

To the Editor.—

The provocative study by Siegel et al (241:391, 1979) found that after running the Boston Marathon, subjects with hematuria had no RBC casts in their urine. The authors suggested that absence of formed elements argued against a glomerular origin. They further cite 21 cases of exercise-related hematuria in which no upper urinary tract cause was found.

The following case demonstrates that the appearance of bloody urine after running may arise from the upper urinary tract.

Report of a Case.—

A 17-year-old high school cross-country runner ran a 3.2-km race at a local golf course. He ran his best time ever (11 minutes, 23 s), and for the first time in his life, he ran barefoot. Three hours later he painlessly voided dark red, burgundy-colored urine. Sixteen hours later an intravenous pylelogram showed a large filling defect in the right renal pelvis, which suggested a blood clot. No . . . [Full Text PDF of this Article]

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