Case 46-1988: Myelolipoma of Adrenal Gland

Jordan L. Holtzman, Michael Bursztyn

Research output: Contribution to journalLetterpeer-review


To the Editor: In Case Record 46–1988 (Nov. 17 issue),1 there was a concern that the patient had an adrenal mass that may have been a pheochromocytoma. Dr. Kantor noted that certain drugs can interfere with the diagnosis of this tumor on the basis of the levels of urinary catecholamines or their metabolites. He then noted that the patient was not taking any such drugs. Actually, he was, since studies from our laboratory have shown that a metabolite of propranolol can interfere with the metanephrine assay. As a result of this observation, we routinely discontinue propranolol or metoprolol, which may….

Original languageEnglish (US)
Number of pages1
JournalNew England Journal of Medicine
Issue number19
StatePublished - May 11 1989
Externally publishedYes


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