Lung Cancer (Squamous Cell Carcinoma) Average Cost

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What is Lung Cancer (Squamous Cell Carcinoma)?

The main function of your dog’s lungs is to provide good oxygen flow and pulmonary blood oxygenation to keep cells healthy. They do this by taking in oxygen from the air and exhaling extra carbon dioxide. When one or both of the lungs are affected by lung cancer, infection, or trauma, your dog’s life is in jeopardy due to inadequate lung function. Primary lung tumors are rare in dogs and only make up about 1% of cancer in dogs overall, but these numbers have been increasing rapidly in the past several years. However, out of the primary types of tumors in dogs (i.e. adenocarcinomas, bronchioloalveolar), squamous cell carcinoma is the least common and slowest to grow. 

Although this kind of cancer can affect breeds of any sex or age, it is seen most often in large breed dogs over the age of eight. The areas most often affected by the spread of squamous cell lung carcinoma are the lymph nodes, lobes of the lung, chest lining, bones, brain, and liver. Unfortunately, it is also the most deadly type of cancer, with extremely aggressive tendencies, so once it metastasizes (spreads) to the lymph nodes, it is difficult to stop. That is why it is extremely important to take your dog to the veterinarian if you suspect lung cancer of any kind.

Lung cancer in dogs can be primary (originating in the lung) or secondary (spread to the lung from somewhere else). Squamous cell carcinoma of the lungs is a slow-growing primary tumor of the tissue cells that is very aggressive. Squamous cells are found in the lining of blood vessels and organs in the body. Pulmonary squamous cells are flattened scales that make up the layers of the tissues inside the lungs.  Although this is a rare and slow-growing type of cancer in dogs, it has a high mortality rate because it is very aggressive.

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Symptoms of Lung Cancer (Squamous Cell Carcinoma) in Dogs

The symptoms of squamous cell carcinoma of the lungs are varied and depend on the spread of the disease. If you catch it early, there may be no symptoms at all except maybe lethargy or weight loss, but the longer it has to spread, the more symptoms you will notice. Unfortunately, if you wait until you notice more than one symptom, your dog will not have a good chance of survival. That is why it is so important to bring your dog to the veterinarian at least once per year and right away if you see a change in your dog’s behavior or appetite. You know your dog better than anyone, so it is up to you to know when it is time for a trip to the veterinarian. Here are the symptoms that are most commonly noticed:

  • Coughing
  • Constant sneezing
  • Difficulty breathing
  • Weight loss
  • Loss of appetite
  • Limping (due to extra tissue growth in legs)
  • Extreme sleepiness and weakness
  • Blood in urine or stool
  • Coughing up blood
  • Not exercising

Causes of Lung Cancer (Squamous Cell Carcinoma) in Dogs

There are several causes of squamous cell carcinomas of the lung, but many times the cause is never discovered. Some of the most commonly suspected causes are:

  • Age
  • Exposure to chemicals
  • Second-hand smoke
  • Unknown

Those at the highest risk are large breed dogs (i.e. German Shepherds, Labrador Retrievers) eight years of age and older. Living with a smoker or exposure to toxic chemicals are also risk factors for squamous cell carcinomas.

Diagnosis of Lung Cancer (Squamous Cell Carcinoma) in Dogs

For an accurate diagnosis, your veterinarian will need to know exactly what symptoms you had noticed and when they started. It is also important to note any recent trauma, illness, or changes in behavior or appetite. The veterinarian will do a complete and thorough physical examination, which includes vital signs (respirations, body temperature, heart rate, blood pressure), weight, and visual inspection of your dog’s eyes, ears, nose, and mouth. 

Tests that the veterinarian will need to do are blood work (CBC, blood gas, chemical panel) to check for an increase in white blood cells or a higher than normal level of calcium. Urinalysis, nasal and throat cultures, and radiographs (x-rays) of the chest, head, and abdomen. If the x-rays are not clear enough, your veterinarian will probably do an MRI, CT scan, or ultrasound for more detail. An endoscopy may also be done, which is a procedure the veterinarian performs to see inside your dog’s lungs without surgery. The endoscope is a long, skinny tube with a camera and tiny clipping device that will get a sample of fluids and tissues for examination. This will give a better view to see if lung cancer is present and will show the tumor or tumors inside your dog’s lungs. The endoscopy is minimally invasive and can be done in the office under local and general anesthesia. The risks are small, and the results are usually enough to give a definitive diagnosis.

Treatment of Lung Cancer (Squamous Cell Carcinoma) in Dogs

Almost all dogs with squamous cell lung cancer need surgery to remove as much of the cancerous area as possible before starting any treatment, such as radiation therapy or chemotherapy. The surgery is called a lung lobectomy, which means they remove the lobe or part of your dog’s lung lobes affected by cancer. Your veterinarian may send you to see a veterinary oncologist to determine the best course of action for your dog.

Recovery of Lung Cancer (Squamous Cell Carcinoma) in Dogs

After surgery, your dog will need cage rest with light activity (i.e. walk around the block, play catch for about 15 minutes) because he will be very weak and will need your help with eating and drinking. It is important to bring your dog to be checked at the first sign of lung cancer because waiting too long will most often be fatal. In fact, this illness has a high mortality rate even if you get your dog treatment because it is an aggressive cancer that is resistant to many medications.

Lung Cancer (Squamous Cell Carcinoma) Questions and Advice from Veterinary Professionals

Lab X
Moderate condition
0 found helpful
Moderate condition

Medication Used


My dog is a Rhodesian ridgeback/lab x female nearly 12. She has just been diagnosed with SCC of the lung with lymph node involvement. My vet has recommended piroxicam first and then chemo with carboplatin and doxorubicin. I love her so much and don’t want to put her through chemo if she is going to be sad, sick etc. would you suggest just the piroxicam or any other advice would be appreciated

Dr. Callum Turner, DVM
Dr. Callum Turner, DVM
3319 Recommendations
Squamous cell carcinoma in the lungs is an aggressive highly metastatic cancer which generally carries a poor prognosis; piroxicam either alone or together with carboplatin would make a start, but there are various different chemotherapy protocols to follow and I would recommend consulting with an Oncologist to review Peaches case. Regards Dr Callum Turner DVM

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Moderate condition
0 found helpful
Moderate condition

My dog was just diagnosed with lung cancer (carcinoma) and has a fairly large tumor in her right lung. The lower lobe looks healthy but the airway is blocked due to the tumor growth and the entire lung may have to be removed. According to the oncologist, this may buy her 12 months or less. will surgery have a positive outcome on the end of life after the approx 12 months, or will the dying process be about the same if we did not get the surgery. I am not sure I want to subject my baby to a traumatic experience and possible complications of a full lung removal if she will end up going thru the same thing, just months later. She is a 9 year old large boxer at 90 pounds.

Dr. Callum Turner, DVM
Dr. Callum Turner, DVM
3319 Recommendations
Unfortunately in many cases, death is never really comfortable and it is difficulty to say whether the lobectomy will make a more comfortable passing; but it may buy you a few more months together where Buckley will not have the mass obstructing his breathing. I would recommend the surgery as he is still relatively young and if he is otherwise healthy (liver, kidneys, blood counts), surgery would be a suitable option. Each case is individual and I can only speak generally as I haven’t examined Buckley, your Oncologist would be able to answer you first hand. Regards Dr Callum Turner DVM

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Labrador/Chesapeake retriever
11 years 2 months
Serious condition
1 found helpful
Serious condition

Has Symptoms

coughing, spitting up,loss of appetite,no energy

Just this last Sunday I had to put my dog down because of a very aggressive lung cancer that, at last, had cover 80% of her lungs. Three weeks prior to that I took her into my vet because she was coughing and gagging profusely. The vet thought she had kennel cough. and administered an antibiotic shot and antibiotic pills, but he didn't suggest chest x-rays, as I did! I was surprised at this. He said if she didn't start to get better after three days or so to bring her in. She never got better from the stupid antibiotics. I brought her in again and had xrays taken. Loand behold, her lungs were covered with growth. the vet thought it could be a fungal disease or cancer...he wasn't sure. They did a blasto urinalysis test and 3 days later it came back negative. So it was deducted that my dog had cancer. By this time I took her to an emergency veterinary service 45 minutes away,. Updated x-rays were taken and the very competant vet said her cancer had metastasized to the point where my dear dog, Elouise, had only 15% breathing space in her lungs and water collected around her lungs. at this point the vet tried to drain the lungs with a lasik shot to give Elouise relief. it did for about 3-4 hours, and then she was back to square one...water collecting again, pain and pressure. She would not eat any dog food for 6 days at that point, only peanut butter out of my hand. So on Sunday, considering her suffering, pain and condition, by 9:30pm I had her put down. that was the hardest decision i ever had to make, in my entire life. My question to you health care professionals is, do you think, in all honesty, there would have been any chance for my beloved companion through aggressive chemotherapy from an oncologist? I would welcome your honest, professional opinion, in this case. thank you for your consideration and I look forward to hearing from you. You can contact me at 773-818-9658 and/or email me at [email protected] Thanks again...James

Dr. Callum Turner, DVM
Dr. Callum Turner, DVM
3319 Recommendations
I understand that this is a traumatic time for you; you are looking for any possible fault in the actions that you took and are wondering if the x-ray was done days earlier, would it have changed the final outcome. Unfortunately, with the lungs in the condition they were at there would have been no effective treatment or management which would be effective; with the level of spread on the lungs (as well as possible spread elsewhere), Elouise would have continued to have respiratory difficulty as the damage to the lung tissue would be irreversible. Elouise is at peace now and you have many years of good memories with her; from the description you gave, I cannot see any possible long term value of any therapy (obviously we don’t know specifically what the lung lesion was and if it was cancer the type of cancer - but in general). Regards Dr Callum Turner DVM

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Boston Terriers
12 Years
Serious condition
0 found helpful
Serious condition

Has Symptoms

Labored breathing.

Our sweet baby girl Bella Luna is 12 years old. She started breathing very labored about 1.5 weeks ago. We took her to the vet who did an X-ray and saw her chest was filled with fluid to the point they could not see the heart. They were concerned she had an issue with her heart due to a heart murmur she has. So we took her to a specialist who did a sonogram and saw that while she did have heart decease it was not the cause of her labored breathing. They saw a mass on her left lung. They removed fluid from her chest and sent it to be tested. Today we got the call that there were inflamed cells that made them believe it could be carcinoma. They were going to do another test that would confirm this. We do not know what to do. She is having a very hard time breathing. Do we put her through surgery at her age? If not at what point do we say she is suffering and make the decision to let our sweet Bella go?

Dr. Callum Turner, DVM
Dr. Callum Turner, DVM
3319 Recommendations
A decision on whether to operate or offer palliative care and eventually euthanasia would need to be a decision you make together with the Specialist and would be dependent on the extent of the lungs affected (lobe lobe versus disseminated). Once you have more information you could make an informed decision together with the Specialist who would be able to guide you based on their experience. Regards Dr Callum Turner DVM

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