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Cancer and Cats: Misty’s Story

By Colleen Williams
published: August 7, 2018 - updated: August 8, 2022 • 4 min. read
feline cancer

To pet parents, a cancer diagnosis is scary, and it can escalate quickly. Cancer is a disease caused by the rapid division of cells that often form masses or tumors in various parts of the animal. While it mainly occurs in older pets, it almost feels like no animal is immune, and can be found in almost every part of the anatomy, from the bones to the brain.


Watch for any lumps or masses on your cat, especially those that seem to be increasing in size. Behavioral changes can also be an indicator, including lack of appetite, difficulty urinating or defecating, weight loss, difficulty breathing, or lameness. Any fluid discharge or bad odors can also be signs.  If any of these symptoms are present, make an appointment with your veterinarian; these can also be symptoms of other diseases besides cancer.

Misty, a Chinchilla Persian senior cat, was diagnosed late last year. “She’s always been a picky eater, but she kept eating less even with an appetite stimulant. Her coat wasn’t as shiny or well-groomed and she would vomit a foamy liquid,” explains pet parent Kay. “She was weak and had trouble going up and down stairs or getting onto the bed, and she was barely moving throughout the day and sometimes even seemed in pain when I picked her up.” Kay took her to the vet for her senior kitty physical – “Misty is 18 years old and will be 19 this year!” – and the vet picked up on an abnormal feel to her kidney. It turned out to be cancerous.

white fluffy cat
Misty, pre-surgery


If a biopsy confirms the presence of cancer, treatment largely depends on the type of cancer present. Surgical removal of the tumor and/or affected areas is one option, and many pet parents also choose to treat their cat with radiation therapy and palliative chemotherapy. Interestingly, pet chemo is very gentle, and if the side effects are brutal or unbearable, a vet will discontinue use. It is very common for a vet to combine surgery with chemotherapy and radiation for full effectiveness. However, if the cancer has metastasized, or progressed, too far throughout the animal’s body, it sometimes can’t fully be treated.

Kay brought Misty in for surgery, and ultimately, the removal of one kidney. “It was a scary experience for both of us and the outcome uncertain,” says pet parent Kay. “Her vet was fairly sure the cancer hadn’t spread, but was concerned her smaller remaining kidney wouldn’t be able to pick up the load once the other kidney was removed.” Kay’s choice to bring in a senior kitty for surgery was nerve-wracking: “It was a difficult decision; I literally bit my nails for nearly four hours, but realized the longer I waited for the vet’s call, the better Misty’s chances of recovery.”

How much do these treatments cost?

Radiation therapy for cats can cost anywhere from $1,000 to $4,000 while chemotherapy costs range from $200 to $2,000. Surgery is usually an expensive path as well – anywhere from $1,000 to $5,000. Pet insurance can greatly reduce the costs of cancer treatments, which are very expensive. For Kay and Misty, their entire cancer treatment was $4,745 and Kay has been reimbursed $3,836.


white fluffy cat on pet scale
Misty at her latest vet appointment

“Misty recovered more quickly than I would have expected of a cat her age with no excessive swelling, bruising or infection,” says Kay. “The hardest part was keeping her corralled downstairs the first few days after surgery because her preferred area of the house is upstairs in the master bedroom.” After four days, Misty was active yet again, but “because I was still concerned about her damaging her incision, I moved her litterbox and food upstairs to keep her off the stairs as much as possible. I also purchased a ramp to help her get on the bed if she wanted to do so, which of course she ignored, preferring to sleep in her heated bed in the master bedroom closet!”

Pet parents report watching all bodily functions like a hawk during recovery, especially post-cancer treatments. Some cats also have acupuncture, physical therapy, and follow up appointments for quality of life, increased recovery times, and a more holistic approach to cat cancer care.

Misty has since fully recovered: “Thanks to the vet, her staff, and Healthy Paws, Misty is enjoying extra quality time with her human can opener. She may look like a delicate, ethereal being, but she is tough and determined – as you can see by the fact that she survived a surgery that would have sidelined cats much younger!”

How Can I Prevent Feline Cancer?

Some viruses can cause cancer, such as the feline leukemia virus (FeLV), which if left unchecked, can cause lymphosarcoma. Vaccinating your cat, keeping it indoors, and scheduling regular checkups can all reduce the chance of contracting FeLV. Spaying your cat can prevent feline breast cancer and also decrease overpopulation. The risk of feline skin cancer, or squamous cell carcinoma (SCC), can be minimized by reducing the amount of time your cat spends in direct sunlight. These are three of the most common feline cancers; keeping your pet at a healthy weight, indoors, and disease-free can all lessen its risk of having cancer.

Cancer can be a scary surprise for a pet parent. If caught early, treatments can greatly improve a pet’s prognosis. Always consult with a veterinarian if you are concerned your cat is displaying symptoms of cancer. If your cat has not exhibited any symptoms before enrollment or during the waiting periods, claims for the condition will be covered up to 90%. Find out more by getting a free quote today.

The claim scenarios described here are intended to show the types of situations that may result in claims. These scenarios should not be compared to any other claim. Whether or to what extent a particular loss is covered depends on the facts and circumstances of the loss, the terms and conditions of the policy as issued and applicable law.

Insured people providing testimonials in this report have not received compensation for their statements.

if you are a Healthy Paws pet parent with a recovery story to tell, we’d love to hear it! Send your pet’s story along with photos of your four-legged family member to

colleen williams
By Colleen Williams

Over the past decade, Colleen has written about health, wellness, beauty, and even pets for The New York Times, The Cut, Refinery29, xoVain, Healthy Paws Pet Insurance, and Seattle Met Magazine, as well as many beauty brands. She has a BFA in Art History from the University of New Mexico and an AAS in Fashion Design from Parsons School of Design in New York.

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