This lump could be all kind of things. It could be a large cyst. It could be a fatty tumor (Lipoma, which is benign) -or it could be something more serious.
The only way to be certain is to take your dog to the vet and have him look at it. You might be advised to have a needle-biopsy done. That is fairly quick, and needs no anesthetic. A small sample of the tumor is taken with a syringe, and sent for analysis. Sometimes the results come almost immediately, as when the vet takes the sample and puts it on a slide, it can sometimes be obvious whether what it contains is just fatty substance. But most times there is a short wait for results, of a few days perhaps.
It is definitely worth doing this. If by chance it was a cancerous tumor, it would have to be removed as quickly as possible.
Copyright 1994-2017MedHelp International.All rights reserved. MedHelp is a division of Aptus Health.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.