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1 Resident in Medicine, University of Oklahoma Medical Center.
2 Instructor in Medicine, University of Oklahoma School of Medicine.
A new instrument for simultaneous performance of thoracentesis and pleural biopsy is described. This instrument is considered safer than previous thoracentesis or biopsy needles in that, after initially entering the pleural space, a sharp point does not project towards the lung.
Twenty-eight per cent of all 47 cases, or 59 per cent of 22 carcinoma cases on which this instrument has been used, were diagnosed by the pleural biopsy. Only four biopsies failed to yield a satisfactory specimen.
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