title: PDX
text: # PDX
  
  PDX may refer to:
  
  ## Places
  
  * Portland, Oregon, US
     * Portland International Airport (IATA code)
     * Portland Union Station (railway code)
  
  ## Brands and enterprises
  
  * PDX, a line of musical instruments and equipment by Vestax
  * Paradox Interactive, a Swedish video game publisher
     * Paradox Development Studio, the in-house game development team of the above
  
  ## Computing and technology
  
  * Paradox (warez), a warez–demogroup; an anonymous group of software engineers that devise ways to defeat software and video game licensing protections, a process known as cracking
  
  ## Science and healthcare
  
  * Pancreatic and duodenal homeobox protein, a transcription factor
  * Patient-derived xenograft, human tumor grown in mice
  * PDX, principal diagnosis (see Medical diagnosis#Concepts related to diagnosis), the main cause of a patient's need for treatment
  
  ## Other uses
  
  * PDX.edu, domain name of Portland State University, Oregon
  * Performance Driving eXperience, an event sanctioned by the Sports Car Club of America
  