posteromedial pos·ter·o·me·di·al (pŏs'tə-rō-mē'dē-əl)
In back and toward the middle line.
The bullae are relatively much inflated throughout but especially so on the posteromedial parts.
The alisphenoid bone is large and forms part of the posteromedial wall of the orbit.
Prominent on the palatine bone, posteromedial to the third molar, is the foramen (palatine pit) for the palatine vein.