Without sounding like a broken record I suspect Marek's Disease.
After seeing the photo I am almost sure. Marek's is a form of cancer that is triggered by the herpes virus. Every organ or any organ on or in a chickens' body can be involved. Some common examples are a chickens eyes, their nerves, or their skin. Each type of cancer may well present itself in a different fashion so it is very hard to be sure of a diagnosis of Marek's Disease.
After seeing the photo I am almost sure. Marek's is a form of cancer that is triggered by the herpes virus. Every organ or any organ on or in a chickens' body can be involved. Some common examples are a chickens eyes, their nerves, or their skin. Each type of cancer may well present itself in a different fashion so it is very hard to be sure of a diagnosis of Marek's Disease.
IF given the proper dosage, Tylan50 can treat intestinal infections like Enteritis. A broader spectrum antibiotic like Amoxicillin may be beneficial since intestinal infections can be from a number of things. 