His diagnosis is Hernia and Xanthoma.
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I don't have pix's of the above. Those things happened before I started digitally documenting everything. It's not a hernia. A hernia would be a soft pocket of flesh thru the abdominal wall, and is not repairable. It is not an Xanthoma because the skin is not weeping a clear plasma, and if it was this it is fatal. Most Xanthomas are on the wing, and when it happens the wings have to be amuputated in order to save the bird.
He decided she needs to loose weight, before he will operate.
If there is fluid accumulation in the abdominal cavity this would have to be removed because this makes up a large part of the weight. The keelbone has to be cheeked to determine it the bird is overweight or underweight.
If it is not peritonitus, one other thing is it could be fatty liver, which the layer of fat showing below the skin would get thicker and darker the worse the problem is. The birds keelbone would be well padded on either side in the early stage, and very sharp in the advanced stages.