To the Editor.
—I have recently read Dr N. K. Krane's article on pheochromocytoma in the January 1986 issue of the Archives.1 The first sentence of the second paragraph, page 54, is extremely misleading because of the omission of a phrase. The 54 patients seen at the Mayo Clinic in the article described were all diagnosed at autopsy. We have seen an enormously greater number than 54 pheochromocytomas, as is well understood by anybody who has read our contributions to the literature. The fact that this was an autopsy series is pointed out on page 56, second paragraph. On page 55, he does refer to an article by Minno, another autopsy study at the Mayo Clinic, and again does not indicate that this was an autopsy study nor does he refer to it subsequently. He does have a reference to very early work from Mayo by Gifford, 1964 (Reference