Yep I had a large necrotic lymph node mass found when they did a laprotomy. Discharge report said they removed it but no when I had a follow with a different doctor it was still there. Biopsies showed it was not cancerous and it was decided to just leave it. I had follow up ultrasounds to see if it was shrinking like they expected and sure enough when I had my last ultrasound 6 months after first finding it, there was no evidence of it.
I also had an abscess but was told it was as a result of the first surgery, not from a leaking bowel so best to get it all checked out.