Lucy went in last week to have the lumps removed. All went well and she is healing nicely, she just got her wheel back and was quite happy about that. The vet said that the larger lump was cancerous but she was able to get all of it. The smaller lump was fibrous but could have turned cancerous with time. She gave her a clean bill of health. Hopefully there are no repeats.
Thanks for all of your help and encouragement.