Ok Jo has just rang they have removed the lump andf found it to be some sort of abcess, it may have been a tumour which has necrosed (sp) but without tests they are unsure and the vets don't think anything would be found from testing the lump. Pan has however had a peritonitis at some point so they were amazed that she is so well. They have free'd up her guts and have her on alot of meds and will be keeping her in tonight to make sure she is eating a passing poops. Hopefully they havn't caused any further damage to her guts but we will have to wait and see. I am amazed at how well she is considering what she has had. The only explanation for her weak legs is pain :?