What is this foot growth?

[Eema101]

this is one of my hens whose suffering from a massive growth on one of her legs. I'm sure it's not bumblefoot. It looks to be more like a fungus growth than anything else, her leg is large and crusty and she's unable to walk anymore. Does anyone know what this is, I really want to help her

 

[Schlabach4Her]

I would say bumblefoot but you are positive it isn't... Well I have no idea bye.

 

[MrsBrooke]

This looks like it could be scaly leg mites.

MrsB