JOHN G. MEHARG JR, M.D.; SCOTT A. CHERRY, M.D.
To the editor: We were interested to read the exchange of letters (1) in your journal after publication of the review of malignant pleural effusion by Leff and colleagues (2) with regard to the presence or absence of eosinophilia in pleural effusion due to metastatic malignancy. The crux of the matter would seem to be the definition of eosinophilia, which Leff and associates state is "an eosinophil count exceeding 10% of the total leukocyte differential." Using that criterion, they report that they have encountered no cases with metastatic malignancy as the cause of the effusion in which pleural fluid eosinophilia
MEHARG JG, CHERRY SA. Eosinophilia in Malignant Pleural Effusion. Ann Intern Med. ;92:715. doi: 10.7326/0003-4819-92-5-715
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Published: Ann Intern Med. 1980;92(5):715.
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