Trifurcate middle turbinate; an unusual anatomical variation.

Anatomical variations of supernumerary middle turbinates include a secondary middle turbinate, which is a bony projection arising from the lateral nasal wall and covered by soft tissue, and an accessory middle turbinate, which is a medially bent uncinate process. Although pneumatization of the middle turbinate is common, inferior turbinate pneumatization is very rare. We report what we believe is the first case of a middle turbinate split into three divisions, i.e. trifurcated. This co-existed with a pneumatized inferior turbinate.