pneumomyelography

Rarely used radiographic examination of spinal canal after injection of air or gas into the subarachnoid space. [G. pneuma, air, + myelos, marrow, + grapho, to write]

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pneu·mo·my·elog·ra·phy (noo″mo-mi″ə-logґrə-fe) [pneumo- + myelo- + -graphy] radiographic examination after withdrawal of cerebrospinal fluid and injection of air or gas into the spinal canal.