My old dog has a red lump on her neck. Why didn't antibiotics work?

Antibiotics will only decrease the size of a mass if the mass is infected. If it is a benign mass, it will likely stay the same size and will not go away without surgery. If your veterinarian took a sample of the mass, they may be able to tell you what they think it is. Benign masses tend to stay the same size or grow very slowly over time. If it is enlarging quickly, it should be evaluated again. Good luck! I hope that was helpful. Thanks for using Petco Pet Education Center, formerly Petcoach.

Thanks for using Petco Pet Education Center, formerly Petcoach! This could be a benign or malignant growth. There is no way of knowing what it is just based on its appearance. This is often differentiated by a test called a fine needle aspirate (FNA) which is a pain free, inexpensive and easy procedure which in most cases will help reach a diagnosis. Sometimes a biopsy is needed for a definitive diagnosis. I recommend that you have her evaluated by your veterinarian for further assessment and treatment. I am really hoping for something benign. Good luck and have a good night!

Thanks for using Petco Pet Education Center, formerly Petcoach! These could be benign or malignant growths. These could even be due to an infection or an allergic reaction like you pointed out. This is often differentiated by an exam and a test called a fine needle aspirate (FNA) which is a pain free, inexpensive and easy procedure which in most cases will help reach a diagnosis. Sometimes a biopsy is needed for a definitive diagnosis. I recommend that you have him evaluated by your veterinarian for further assessment and treatment. I am really hoping for something benign. Good luck and have a good day!

Thanks for using Petco Pet Education Center, formerly Petcoach! This could be a benign or malignant growth. It could also be an enlarged lymph node. This is often differentiated by a test called a fine needle aspirate (FNA) which is a pain free, inexpensive and easy procedure which in most cases will help reach a diagnosis. Sometimes a biopsy is needed for a definitive diagnosis. I recommend that you have him evaluated by your veterinarian for further assessment and treatment. I am really hoping for something benign. Good luck and best wishes!

Thanks for using Petco Pet Education Center, formerly Petcoach! This could be a benign or malignant growth. There is no way of knowing for sure without an examination though this represents a reason to seek veterinary care. This is usually determined with an examination and a fine needle aspirate (FNA) or a biopsy. Treatment depends on the findings up to that point. I recommend you have Gunnar evaluated by a veterinarian for further assessment and treatment. Good luck and have a good night!

Thanks for using Petco Pet Education Center, formerly Petcoach! This could be a benign or malignant growth. There is no way of knowing for sure without an examination though this represents a reason to seek veterinary care. This is usually determined with an examination and a fine needle aspirate (FNA) or a biopsy. Treatment depends on the findings up to that point. I recommend you have Panda evaluated by a veterinarian for further assessment and treatment. Good luck and have a good day!

Your vet is correct. You actually have a choice now: a fine needle aspirate where a little tissue is harvested from the lump and then examined to determine what kind of growth this is. Should it be benign, or just inflammatory, treatment would be either benign neglect or treating the inflammation or possible infection. Should it be malignant, then your vet will probably elect to amputate the tail well above the tumor and then this would often be curative depending on the type of tumor. In that case it is actually good that it is in the tail and not somewhere else on the body. Trust your vet, he is on the right track.