Greetings
tjo804,
I am by no means a medical expert, I am just a keeper like you. However, I do enjoy learning about the many illnesses and conditions affecting poultry.
Brahma Chicken5000, I thank you for your confidence in me.
A vet is always the best option for a situation such as this. But, if that is not an option, for what ever reason. I am willing to give my thoughts on the situation.
It's hard to evaluate texture and color of growths, just by looking at a picture. But, your description is helpful.
Here is my best guess:
It may be a
Xanthoma subcutaneous, yellow, fatty masses in the skin. Xanthomas are often found on the outer part of the wing, as well as other areas of a bird. What caused it? Who knows? But, vitamin A is reported as a treatment. Xanthomas tend to be vascular. So it may not be a good idea to cut or pierce it. The chick could bleed out quickly.
Of course, there is always a possibility that it is a cancerous tumor, benign or malignant. Only a vet can tell you that, by doing a biopsy on the tissue. But, it's a baby chick, if it is a cancerous growth, it will overcome the chick quickly. These growths take a lot of energy to grow. This is accomplished by sapping the nutrients and blood from the bird. Weight loss and emaciation will be obvious.
In a similar post, a hen had her wing removed due to a benign tumor.
I say, do your best with the little chick. There is a good chance this is just a Xanthoma. Treat with vitamin A, as suggested. I would buy some vitamin A capsules, pierce one and apply a tiny drop of oil to the growth every 12 hours. Do this for a week, if you don't see the slightest reduction or drying, in the growth, you can decide whether to continue or stop treatment. Also, try mashing up some cooked carrots and sweet potatoes, and offer it to the chick, for dietary vitamin A. I think a supplement would be too strong for the little fluff ball. One must be careful with supplementing small animals, as, some vitamins supplements can be toxic, food is safer.
These are my thoughts on your chick's wing growth. I hope they are helpful.
Other members will offer advise, please consider them too.
God Bless and peace to you.