Liver Tumor in Cats
Written By hannah hollinger
Published: 10/15/2016Updated: 01/12/2022
Veterinary reviewed by Dr. Linda Simon, MVB MRCVS
Liver Tumor in Cats - Symptoms, Causes, Diagnosis, Treatment, Recovery, Management, Cost
What is Liver Tumor?
Cancer of the liver most often occurs in older cats who are 10 years of age or older; male cats have a slightly greater risk of developing liver tumors than females. Treatment depends on whether the liver tumor is benign or malignant and what other organs (if any) are involved.
Liver tumors in cats, also known as hepatic neoplasia, occur when a primary tumor develops in the liver, when cancer develops in the blood cells or lymphoid tissue that involve the liver, or when a different type of cancer metastasizes and spreads to the liver. Primary liver cancer is rare in cats and accounts for less than two percent of all cases. The majority of liver cancer occurs when cancer of the spleen, pancreas, or intestinal tract becomes metastatic.
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Liver Tumor Average Cost
From 459 quotes ranging from $3,000 - $8,000
Average Cost
$6,000
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Symptoms of Liver Tumor in Cats
Symptoms may vary depending on if the tumor is benign or malignant and if the tumor has metastasized from another primary cancer in the cat's body. These symptoms include:
Types
There are several different types of primary liver tumors, including:
Causes of Liver Tumor in Cats
There is no known cause of liver tumors. Researchers believe that age could be a risk factor. The older a cat is, the more cell divisions that its body has gone through, increasing the risk of a mutation. Other possible risk factors include genetics, consumption or inhalation of chemicals or toxins, chronic inflammation, and hepatotoxicity.
Diagnosis of Liver Tumor in Cats
The veterinarian will need to know the cat's complete health history, which will include what symptoms are present and when the symptoms first began. The veterinarian will examine the cat, feeling for any enlarged lymph nodes or abdominal enlargement and listening to its breathing and heart. Because liver tumors are often asymptomatic until they grow and spread to other organ systems, the tumor may be found during a routine exam.
Several labs will be taken, which will include a complete blood count, biochemical profile, an electrolyte panel and a urinalysis. These labs don't test for liver cancer but can show signs of liver damage or bile duct obstruction, which can lead to further testing. An abdominal ultrasound and chest x-ray will be performed to look for evidence of a tumor or metastasis to the lungs and to eliminate other conditions. To make a definitive diagnosis, the veterinarian will need to do a liver biopsy. This will be done via a needle that is inserted into the liver to remove a sample of tissue, or during surgery to remove a small portion of the liver tissue. These samples will then be tested for cancer cells.
Treatment of Liver Tumor in Cats
Surgery
Surgery is the preferred treatment for primary liver tumors. Because the liver is regenerative, up to 75 percent of the liver can be safely removed to eliminate the tumor while still preserving function. The cat will be placed under general anesthesia during the surgery. An incision will be made in the abdomen, the tumor will be removed, along with a portion of the liver to ensure margins are clear. The incision will then be closed with sutures. Surgery is normally successful, even for large tumors, when the tumor hasn't spread beyond the liver.
Chemotherapy
Chemotherapy may be utilized to slow the progression of cancer that has spread to other organs beyond the liver or for the treatment of primary cancers that have metastasized to the liver. Chemotherapy has a variety of side effects, however, and should only be attempted if these side effects can be managed and if regular abdominal ultrasounds indicate that the chemotherapy is effective in shrinking the tumor.
Medications
Medications for pain management may be prescribed in order to keep the cat comfortable and free from the pain of the tumor. Antibiotics will also be prescribed after surgery to ensure that infection doesn't occur.
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Recovery of Liver Tumor in Cats
When caught early, primary liver tumors have a high success rate after surgery and have a good prognosis. The cat will need to regularly follow up with the veterinarian to monitor the liver for signs of the cancer returning. Cats who have a liver tumor that has metastasized from another primary cancer or have primary liver cancer that has spread have a poor prognosis. The cat will need to be cared for at home and proper care will need to be taken to keep the cat comfortable.
Liver tumors can be expensive to treat. If you suspect your cat has a liver tumor or is at risk, start searching for pet insurance today. Brought to you by Pet Insurer, Wag! Wellness lets pet parents compare insurance plans from leading companies like PetPlan and Trupanion. Find the “pawfect” plan for your pet in just a few clicks!
Liver Tumor Average Cost
From 459 quotes ranging from $3,000 - $8,000
Average Cost
$6,000
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Liver Tumor Questions and Advice from Veterinary Professionals
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Calico
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Gracie
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15 Years
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36 found this helpful

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36 found this helpful

My pet has the following symptoms:
Thirsty
Anxious
Eating Often
Our 15 yo female cat was diagnosed with liver cancer after an ultrasound showed multiple tumors. This was after blood tests returned normal. We took her in due to weight loss & voracious eating, which seemed contradictory. Her behavior is mostly normal, but not completely. She wants to always be on our lap, except when she decides to get under the bed (which is open on 3 sides). She also seems "anxious" many times. We are struggling with when to let her go, and tend to think early is better than late, but do these symptoms seem to indicate the 1-2 month prognosis from the vet?
Sept. 12, 2018
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Orange tabby (shorthair)
dog-name-icon
Caesar
dog-age-icon
13 Years
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22 found this helpful

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22 found this helpful

My pet has the following symptoms:
Weight Loss
Increased Thirst
Drooling
Acytes
My cat's vet advised that there's a silver dollar sized growth in his abdomen. His blood test revealed jaundice and an increased white blood cell count. He isn't responding to the antibiotics she prescribed. I am curious to know if there are any alternatives to surgery. I read online that milk thistle can help liver cells to regenerate but I'm afraid it may be too late due to the size of the growth (mass). Thoughts or suggestions (any advice) would be greatly appreciated.
Aug. 9, 2018
22 Recommendations
Milk thistle can be useful to help with liver function and reducing liver enzyme levels, however if there is a mass it wouldn’t be curable with some over the counter plant extract; surgery is most likely indicated due to the the presence of the mass regardless of size. Regards Dr Callum Turner DVM
Aug. 10, 2018
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Cat
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Tinkerbell
dog-age-icon
18 Years
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6 found this helpful

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6 found this helpful

My pet has the following symptoms:
On Methimazole 5 Mg 2X For A Yr
Thirsty,W.T. Loss, Shedding,Breathi
Not sure about diagnosis from vet. I have labs. Findings say sever diffuse loss of any hepatic architecture, massive enlargement of liver borders, no normal parenchyma remaining.kidneys spleen rn, mild increased muscular layer jejunum???
July 22, 2018
Answered by Dr. Michele K. DVM
6 Recommendations
I can't give an opinion on what might be going on with Tinkerbelll without more information, but those findings for her liver ( i assume x-rays?) describe a very angry liver. For more details on what might be going on with her, it would be best to discuss that with your veterinarian, as they can see her, know more about her history and any other lab work that she may have had done.
July 22, 2018
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DOMESTIC
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Coco
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17 Years
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8 found this helpful

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8 found this helpful

My pet has the following symptoms:
Straining To Urinate
Straining To Defecate
I have a cat who I think is constipated, my vet told me to use Actilax .5mls twice a day and pumpkin in addition to changing to a wet diet. She pooed Tuesday, Wednesday, Thursday, but Friday and Saturday she hasn't, and now has blood with her urine (in small blobs of fences too). She is straining to toilet but has a good appetite. She may not be drinking as much water as she normally does. There is a mass near her liver that couldn't be examined properly in the xray because she had too much poo built up. Would she need to be seen by a vet immediately or within the next day?
July 1, 2018
Answered by Dr. Michele K. DVM
8 Recommendations
If Coco is eating and acting generally normal, I would think that she could be seen within the next day. If she is lethargic, or not eating, or crying in pain, then I would have her seen as soon as possible. You can also add some water to her wet food to try and get more water into her.
July 1, 2018
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stray
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Coffee
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7 Years
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14 found this helpful

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14 found this helpful

My pet has the following symptoms:
Fluid In Abdomen
Breathing Difficulties
Restlessness
Tremor
Hi. I’ve been going through a hard time lately in my life. I had two cats that I originally adopted from a shelter, and I loved them above all. I had a special connection to one of them, the female which I named Coffee. She was a shy cat that must have been traumatized earlier in her life. The shelter expected her age to be 7 years old (born 2011). Because of an accident I wasn’t able to care for them and had no one else. I had to contact the shelter and ask for help. It ended up with them taking them back after 2,5 years together. This happened 2 months ago. Now they told me they had to put Coffee down because she had a liver tumour and she wasn’t gonna survive. She had become very ill very suddenly. Lost a lot of weight. I had her for 2,5 years and took her to the vet two times. The first time because she had diarrhea and because she seemed anxious. Complete blood tests and urine tests were taken. This was autumn 2016. The veterinary examined her abdomen and said it seemed a bit swollen. But then the tests came back great, nothing wrong at all. And se recovered from the illness and was a very happy and healthy acting cat again. But I started noticing that she had small tremors in her legs when she was laying still, not sleeping. Like she had small muscle spasms. This continued for the rest of the years but for some periods of time it got a bit worse and then it got better. She never showed any signs of pain and always seemed calm. I asked a lot of veterinarians and no one knew. It wasnt like epilepsy, it was very small and slow spasms. Now that I know that she had a tumour I start thinking that these symptoms could be because of it? Especially the fluid in her abdomen. She was at the vet a second time 2017 and got most of her fur shaved of because she was a longhair. She looked healthy, in a good shape. The veterinarian didnt mention anything about any fluid this time or anything else being weird. I often reacted to the sound of her breathing which was a little heavy. But she never breathed through her mouth or anything like that. I’ve read that breathing difficulties could be a sign of the liver tumour, why is that? If the cat seems normal, eating well and drinking well, good stools and urine, is happy and playing and jumping around as she was; could that mean she didnt experience a lot of pain until she suddenly got so much worse? Im so sad about my little darling, that she started to get this bad right after she moved back to the shelter. Im blaming myself but there was nothing I could have done. This would have happened eventually anyway.
June 16, 2018
14 Recommendations
The problem with some liver tumours is that they don’t really cause an issue until they get past the point of no return and then symptoms may present rapidly, there is no real way to say for certain if the previous issues were related to the liver tumour or not. I wish I could give you some closure on this, but unfortunately I cannot give you a specifics except for this would have occurred eventually either in the shelter or at home with you. Regards Dr Callum Turner DVM
June 17, 2018
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Part maine coon
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Sylvie
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19 Years
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0 found this helpful

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0 found this helpful

My pet has the following symptoms:
Dazed
Excessive Thirst
Leg Weakness
Hi guys... just wondering if anyone has any opinions as to whether my 19yo Sylvie might have had liver cancer / problems. Over the last couple of months(ish) I thought that she was drinking more water than normal but because I am at work during the day and have 3 other cats I wasn't sure. She seemed to be sleeping quite a bit but at that age I didn't blame her. She was also very playful, chasing bits of string etc. Saturday she was 100% normal, jumped up on the table to pinch some treats, went outside for a bit, just Sylvie. Sunday morning I left her sleeping (after a load of fuss and purrs) and went to work. When I got back at 6pm and went indoors I knew something was wrong as soon as I walked in the door. She wasn't in her normal place and I found her looking a bit dazed under the bed. I tried to get her and she managed to walk into the kitchen but her back legs seemed so stiff and she was walking sooo slowely. I put her in the carrier and went down to my friends, when in his place she went to get out of the carrier and she just did a somersault, like her legs weren't working. Straight to the emergency vets who examined her. Eyes, mouth, temperature all normal but she just couldn't make her legs work. The vet felt her all over and said that there was something where her liver would be. It was like something had gone wrong in her brain and she really wasn't with it (the vet didn't think she was in any pain at all). There was really only one decision, hardest thing I've ever had to do but the only one thing I could do for her and I miss her so much it's heartbreaking for me and her daughter. The other thing that wasn't normal is that the next morning when I went to say goodbye I noticed that there wsa a bit of blood around her nose / mouth area. When I went to put her in the box there was a fair amount of blood underneath her which looked like it had come from the back end. I know urine leakage is normal but I have read that blood indicates that there may have been something seriously wring internally. My question is, does this sound like liver problems. I have read that excessive drinking and seizures, leg weakness and the fact that the vet found something noticable in her liver area all point to this. She has now been buried in my garden so autopsy a no no (wouldn't do it to her anyway) but I would value peoples opinions. Thank you Suzi
Liver Tumor Average Cost
From 459 quotes ranging from $3,000 - $8,000
Average Cost
$6,000
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