costodiaphragmatic recess

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Related to costodiaphragmatic recess: pleural effusion, pleural recesses

cos·to·di·a·phrag·mat·ic re·cess

the cleftlike extension of the pleural cavity between the diaphragm and the rib cage; pleural effusions collect here when in the upright position, and since the lung only partially enters, this is the site of thoracocentesis.
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