The TeraRecon server, as used in GE Healthcare Centricity PACS-IW 3.7.3.7, 3.7.3.8, and possibly other versions, has a password of (1) shared for the shared user and (2) scan for the scan user, which has unspecified impact and attack vectors. NOTE: it is not clear whether this password is default, hardcoded, or dependent on another system or product that requires a fixed value.
https://twitter.com/digitalbond/status/619250429751222277
http://www.forbes.com/sites/thomasbrewster/2015/07/10/vulnerable-breasts/