Help my chicken has a bump opposite of her crop

[La3la]

I purchased a hen from a guy and when i got her home I noticed she had a big hard lump on her breast opposite of her gut. I have no idea what it is and it seems to be affecting her because after 3 days she stopped laying eggs and she acts very sluggish. We think it’s either a tumor or feather lump (ingrown feathers) can anyone help me figure this out and what to do?? Shes a silkie feathered serama. He said shes like 7-8 months old.

 

[azygous]

An ingrown feather follicle will be obvious as a "u" shaped object emerging out of the lump. It could be a tumor or it might be an inflamed air sac.

There is an air sac located in the area of the lump on your bird. The condition is called airsacculitis. To determine if the lump is an air sac, sterilize a needle and insert it at the base of the lump. You will hear air escape if it's an air sac.

This is not a cure, however, just a diagnostic procedure. To treat, an antibiotic may be necessary, and it may need to be administered by misting so the bird breathes it in. It can also be surgically treated, but a vet is very much recommended to diagnose and treat this.

Here's a video on how the air sacs work for the bird's respiratory system.

 

[La3la]

An ingrown feather follicle will be obvious as a "u" shaped object emerging out of the lump. It could be a tumor or it might be an inflamed air sac.

There is an air sac located in the area of the lump on your bird. The condition is called airsacculitis. To determine if the lump is an air sac, sterilize a needle and insert it at the base of the lump. You will hear air escape if it's an air sac.

This is not a cure, however, just a diagnostic procedure. To treat, an antibiotic may be necessary, and it may need to be administered by misting so the bird breathes it in. It can also be surgically treated, but a vet is very much recommended to diagnose and treat this.

Here's a video on how the air sacs work for the bird's respiratory system.

Thank you sooo much. I will try what you suggested and see. I’m trying to work more and maybe I can get enough money to take her to the vet if it seems like I need too.