—While it is true that my statement referring to 54 patients with pheochromocytomas at the Mayo Clinic, Rochester, Minn, between 1928 and 19771 might be initially interpreted as the only cases seen with that tumor at the Mayo Clinic, this point is later clarified in the article.Dr Sheps also states that over 500 pheochromocytomas have been seen at the Mayo Clinic; however, this is unpublished data and was not available to me for presentation in my article. The textbook by Hermann and Mornex2 (text referenced by Dr Sheps in his review of pheochromocytomas)3 is out dated with regard to evaluation of pheochromocytomas; however, their series of 507 patients provides the largest total number of reported tumors I reviewed. The more recent monograph of Manger and Gifford,4 an excellent review of the subject, is also out of date with respect to newer imaging techniques
Krane NK. Clinically Unsuspected Pheochromocytomas-Reply. Arch Intern Med. 1986;146(8):1638–1639. doi:10.1001/archinte.1986.00360200218050
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