About This File
This is a .stl file of a left temporal bone ready for 3d printing.
I have segmented a CT scan paying attention to all the important bony structures of the ear.
In the .stl screenshots you can see the mastoid, malleus, incus, the bony canal of the facial nerve, the stylomastoid foramen Etc.
I do this for my training and the idea is to perform a mastoidectomy just in my desktop
i have printed my personal 3d plaster model (you can see in the screenshots) but i haven't the courage to destroy it whit the drill..... 
:) 
I hope that my work can be of help to anyone who wants to try to drill a faithful model of temporal bone at home or simply want to study the anatomy in a versatile 3d .stl Model
Good Job
Nicola Di Giuseppe M.D.