My dog has enlarged lymph nodes & breathing. Is it lymphoma or viral?

There are many lymph nodes in the chest as well and any enlarged ones can cause these signs; unfortunately lungs may be infiltrated by the tumoral cells as well. An immediate check up is needed as x rays can confirm this clinical suspicion and decide whether further treatment can be an option.

Hello, sorry to hear about Giuseppe. Because the lymph node has decreased in size with antibiotics alone and the fact that only a single lymph node is enlarged, this is less likely consistent with lymphoma. Lymphoma typically affects multiple nodes and does not respond to antibiotics. Occasionally, active lymph nodes may remain slightly enlarged for a few days, or if the infection is not being completely treated then the lymph node may remain big. The best way to confirm if this lymph node has lymphoma or not, would be to obtain cytology with a with a needle aspirate to have a pathologist examine the cells. Cytology is generally a non-invasive procedure and could be done by your veterinarian. Hope this helps and best of luck.

If there is no detectable cancer, then the best thing to do here is treat it like an inflammatory condition with steroids +/- antibiotics through your vet. I would also consider an abdominal ultrasound just to be thorough. Elevated WBC's either means infection or inflammation in most cases, especially if cancer is ruled out. I hope that this helps and best of luck moving forward with your pet Chub. Take care. : )

Thanks for using Petco Pet Education Center, formerly Petcoach! The fact that these biopsies have come back inconclusive does not mean that this is not cancer. Unfortunately, this is very likely an aggressive form of cancer. After seeing these images, my main concern is that this is possibly a tumor arising from one of the ribs or sternebrae such as osteosarcoma for instance. In one of the images I see that there is likely pulmonary nodules which are most likely due to metastasis or spread of this cancer. It is hard for me to advice further without being able to look at more images or know more about the case. I would encourage you to check in again with them as another biopsy could be performed. Also, if there is truly already signs of metastasis, the treatment options and prognosis are also limited. I would mention to them the possibility of being referred to a veterinary oncologist who can look at the case with more details and advice further. I really hope they can help you and your boy!

Antibiotics and steroids would be a guess of a treatment simply used to cover the possibilities. Enlarged lymph nodes can be a sign of cancer (lymphoma) or an infection. Steroids can interfere with a diagnosis of cancer but also help keep them comfortable for a short while It is best to have the gland aspirated or biopsied. The results can be back in 24-72 hours so you know exactly what you are dealing with. Generally a steroid and antibiotic can be started to cover your basis until you get a definitive answer. If it is cancer, then the antibiotics are pointless and can be stopped. IF it is inflammation or infection, then you are already on antibiotics to help cover you.

Hello and thank you for reaching out to Petco Pet Education Center, formerly Petcoach. I'm sorry to hear that Thunderbolt has lymphoma but I'm happy he has been doing fairly well with his prednisone. It is possible that this area could be his lymph node which has swollen/grown significantly in size. This can happen pretty acutely, over the course of several hours to a day. This would suggest that his lymphoma is progressive, and his body may not be responding to the prednisone any longer. There are other chemotherapeutic options that may benefit Thunderbolt. I worry that a mass on his neck could continue to grow and possible cause difficulty breathing or swallowing. I recommend having Thunderbolt evaluated by your veterinarian to determine what the swelling is exactly (lymph node vs. mass vs. abscess, etc), and discuss other treatment options. I hope this is helpful!

Lymph nodes can become enlarged because they are draining an infection or inflammatory part of the body, because the lymphatic flow is being disrupted, or because of cancer in the nodes. I would discuss additional diagnostics with your vet, which may vary depending on which lymph nodes are involved. Aspiration of the affected lymph nodes is easy and can often be done without sedation. The samples are sent to a pathologist for review. X-rays of the chest and or abdomen may be indicated. Ultrasound of the abdomen may be needed. Dental cleaning and removal of diseased teeth if the lymph nodes are near the head.