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Previous Volume 347:147 July 11, 2002 Number 2 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

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To the Editor: In her discussion of Case 8-2002 (March 14 issue),¹ Dr. Quinn includes hypothyroidism in the differential diagnosis of exudative pleural effusions. Hypothyroidism usually causes transudative pleural effusions.² Furthermore, the patient had a low level of thyrotropin with normal levels of triiodothyronine and free thyroxine, indicating the presence of subclinical hyperthyroidism rather than hypothyroidism.

Nitin Trivedi, M.D.
Joel Popkin, M.D.
Saint Vincent Hospital at Worcester Medical Center
Worcester, MA 01608
ntrivedi@massmed.org

1. Case Records of the Massachusetts General Hospital (Case 8-2002). N Engl J Med 2002;346:843-850. [Free Full Text]
2. Braunwald E, Fauci AS, Kasper DL, Hauser SL, Longo DL, Jameson JL, eds. Harrison's principles of internal medicine. 15th ed. New York: McGraw-Hill, 2001:1515.

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