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John M. Palmer, MD
Davis, Calif

JAMA. 1971;217(8):1108.

	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.—

A recent case report in THE JOURNAL (215:1158, 1971) describes an ectopic thoracic kidney discovered in an obese hypertensive woman with urinary tract infection. The abnormality presented as a thoracic mass. The authors noted unusually high position of the right kidney on intravenous pyelography and also mentioned a "slight delay in excretion of dye on the right side as compared to the left." In addition, they noted incomplete filling of the inferior calyces on the right. No mention is made of angiography, isotope renography, or differential renal function studies to further evaluate the right kidney. They concluded that no surgical treatment was required for the ectopic kidney.

As first described by Maxwell and associates,¹ delayed excretion of contrast on the affected side is one of the most dependable radiographic signs of functionally significant main renal artery stenosis in patients with renovascular hypertension. In recent experience . . . [Full Text PDF of this Article]

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