AXIAL CT, mid-maxillary sinus
fct02
a nasal process, maxilla
b maxillary antrum
c anterior wall, maxillary antrum
d posterolateral wall, maxillary antrum
e medial wall, maxillary antrum
f malar eminence
g nasal septum
h turbinate
i pterygoid bone
j condyle, mandible
k styloid process
l zygomatic arch
m pterygo-maxillary fissure