pyogenic pachymeningitis

py·o·gen·ic pach·y·men·in·gi·tis

suppurative inflammation of the dura, often spreading from a neighboring osteomyelitis.
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purulent pachymeningitis

(1) Extradural abscess, see there.  
(2) Subdural abscess, see there.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.