Balanced line impedance matching
Yes, you can build differential (balanced) matching network, it is a bit more complicated, but general rule is to divide series impedance by 2 (there are 2 series components, one on the positive side, one on the negative side) and multiply shunts by 2 compared to unbalanced Pi or T networks. mind you, component tolerances become very critical as mismatch between the positive and negative lines can cause unwanted spurious emissions, especially with PAs.

Edit:
A tech note from TI http://www.ti.com/lit/an/slwa053b/slwa053b.pdf