Petco Text Logo
Petco Pet Logo

My dog had cancer, but is healthy with new lumps. Is this normal?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Large (61lb +) | Male | 10 years and 4 months old | 99 lbs

Hello. Yogi was out through many procedures in March/April. The tissue biospsys were not conclusive but likely cancer was the outcome and that he would go downhill quickly and to bring him back for pain medication when he did. It is November now and he is as normal as a year ago. Walking, running, eating well and no pain. Is this normal or could the diagnosis be something completely different. He is getting new lumps on his body but seems very comfortable. An experienced opinion will be great

This question includes photos that may contain sensitive content. Click to view.

View more to consider that the photos may include sensitive content.

1 Answer

Most Helpful Answer

Image profile

Answered By Ricardo Fernandez, DVM

Veterinarian, Veterinary Oncology Resident

Published on November 6th, 2018

Thanks for using Petco Pet Education Center, formerly Petcoach! I would agree that the mediastinal mass is very evident and I would also be very suspicious that it is in fact cancer even if the biopsy did not show that. Sometimes dogs appear to be comfortable even when they are in pain. These new lumps you describe could be somewhat related to this or may be unrelated. I think it would be ideal to have Yogi reevaluated to see if the mass has progressed and if the nodules in the lungs (which likely represent spread of the tumor) have also progressed. I would maintain him on pain control medications even if he does not appear to be obviously in pain. Good luck and have a great day!

Vote icon

1Pet Parents found this answer helpful

image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Sponsored