pneumopyelography

Radiography of the kidney after air or gas has been injected into the renal pelvis. [G. pneuma, air, + pyelos, pelvis, + grapho, to write]

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pneu·mo·py·elog·ra·phy (noo″mo-pi″ə-logґrə-fe) [pneumo- + pyelo- + -graphy] pyelography in which oxygen or air, instead of an opaque solution, is injected into the renal pelvis.