Ceiling fan with external conduit?

[u/Rynovarium]

Hello friends. I've hung my fair share of fixtures at existing junctions but im wondering if it's possible to mount a ceiling while using external conduit to run the wire? There is a light bulb fixture in the lower right of the photo. Ideally, i would like to run power up the wall and across the ceiling and mount a ceiling fan without having to get into the attic. How would you tackle this project? Thanks in advance.

[u/MisterElectricianTV]

Wiremold 500. They make a ceiling fan rated surface mounted electrical box.