STEVEN A. SAHN, M.D.; DAVID D. COLLINS, M.D.
To the editor: Causes of pleural fluid acidosis (less than 7.30) include empyema, malignancy, collagen vascular disease (rheumatoid pleurisy and lupus pleuritis), esophageal rupture, tuberculosis, occasionally hemothorax, and pancreatic pseudocyst (one reported case) (1, 2). We wish to report another cause of pleural fluid acidosis, incarcerated diaphragmatic hernia.
A 39-year-old man was hospitalized with epigastric pain. In the previous 2 years he had had both a stab wound and auto trauma to the left chest. On admission he was afebrile, had absent breath sounds in the lower two thirds of the left hemithorax, and mild epigastric tenderness. He had normal
SAHN SA, COLLINS DD. Pleural Fluid Acidosis and Diaphragmatic Hernia. Ann Intern Med. ;96:380–381. doi: 10.7326/0003-4819-96-3-380_2
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Published: Ann Intern Med. 1982;96(3):380-381.
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