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June 22, 1964

Chemodectoma: Additional Biography

JAMA. 1964;188(12):1089. doi:10.1001/jama.1964.03060380057024

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To the Editor:—  The editorial, "Biography of a Word: Chemodectoma 1950-?" in the March 28, 1964, issue of The Journal (187:1021) affords an opportunity to call attention to the curious way in which this group of tumors is treated in the Cumulated Index Medicus. The term "chemodectoma" is not an in dex heading, although "carotid body tumor" and "paraganglioma, nonchromaffin" are so used. Confusion is created by including chemodectomas of the glomus jugulare and glomus caroticum under the heading of "glomangioma," a group of unrelated tumors of arteriovenous anastomoses. The latter are not chemoreceptor tumors and bear no kinship to the nonchromaffin paragangliomas. This confusion seems to be another case of similar-sounding names beclouding the issue.The terms "glomangioma," "glomus tumor," or the newer "glomangiopericytoma" should be restricted to tumors of blood vessel origin derived from the pericytes of arteriovenous shunts or glomera.

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