Possible lymphoid leucosis neoplastic tumor + Update: Not injury. Confirmed to be a tumor

[awagnon]

That's the purpose of this thread. These tumors are pretty common, but a lot of people will be experiencing it for the first time. Hopefully they will get an idea of how it will progress. I also want to reduce the amount of fear this discovery can unleash. This should show that it's not an immediate death sentence. In fact, I've had two chickens with tumors, and this and the other chicken lived a good number of normal years after the discovery of their tumors.

Thank you so much for all the documentation and information. I am sure it will help so many of us should we experience this with our flocks.