What is growth on chicken's face?

[pbennett]

This is a 1 year old brown leghorn hen. She is eating and drinking well. Very active and vocal. Started as a small bump and has turned to this. Any ideas what it is and what I should do for it. I have her separated to keep others from picking on her. Thanks in advance for your help.

 

[Eggcessive]

I would guess that it is a tumor, an abscess, or a fungus. A tumor would be firm, while an abscess would be softer. I see what looks like a peck mark--was that there when it started, and how long has this been going on? Any other symptoms? She looks very lethargic--is she eating?

 

[pbennett]

She was being held down so we could get the picture. She is very active, eating and drinking. The spot started very small and has continued to grow over a few months. The peck mark is new. We brought her in to clean it off. She is now separated.

 

[Eggcessive]

There is a disease called canker that causes some strange growths around the beak and nose that might look like that, although it looks more like a tumor, especially if it is firm to touch. Canker is treated with Avio-trich 200 mg, fish zole, or metronidazole daily for 5 days by mouth. Here are a couple of links to read, and you can google "canker in chickens" for more pictures:
https://www.backyardchickens.com/t/27193/whats-wrong-with-this-chicken
http://www.thepoultrysite.com/diseaseinfo/154/trichomoniasis-canker-frounce
http://www.jedds.com/-strse-1765/AVIO-dsh-TRICH-(Aviomed)/Detail.bok