Clogged 3D Printer Extruder

I was dealing with a clogged extruder on my 3D printer today. I used one of the long needles from my nozzle cleaning kit. There wasn't any obvious blockage from the bottom.

Image Source: Personal Photo

I removed the Bowden tube from the top of the extruder. I manually feed some cleaning filament into the system and ended up fishing out a piece of filament that broke off somewhere above the heating block last night after I was done printing.