Are you flying AA or IB?

If on AA, unless things have changed, there is no lounge available at PTY. When I was there in February 2014 there was still a sign with directions to the Admirals Club, but no AC. The agent at AA checkin responded to my question regarding use of the lounge (I was traveling in J) cheerfully telling me where the lounge was, but didn't tell me the useful information I learned when I got to the lounge-- no entry for AA passengers.