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January 28th, 2017

28/1/2017

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Happily, for dogs or cats who are spayed before they are sexually mature (the usual timeframe for a spay is before 6 months of age) mammary cancer is virtually unheard of.

The terminology surrounding lumps, tumors and cancer can be a little daunting sometimes, and is often a source of confusion. One thing to keep in mind is that the word tumor does not always mean cancer. Cancer implies malignancy, or a predilection to grow rapidly and spread to other parts of the body: it’s a process known as metastasis, in which a tumor says, in essence, I’m outta here and decides to infiltrate new and exciting regions for growth. A tumor can be benign or malignant, but cancer is always malignant.

So how do we know which lump is bad, and which is not likely to be a problem for our pets? Sadly, there’s no easy way. Any lump found on a pet’s mammary gland has the potential to be cancerous, so having your veterinarian remove the lump and submit it for a biopsy is an important part of keeping your pets safe from this disease.  A biopsy is a piece of tissue that can be preserved and looked at under a microscope by a pathologist to determine what the lump is (mammary tissue vs. some other tissue that just decided on a whim to form a lump) and whether the lump is cancerous, or as doctors call it, malignant. You can’t tell if tissue is cancerous just by the way it looks, how it feels or where it is.

There is one intermediate step that can offer information to your veterinarian on how extensive or radical – a term that we used to associate with skateboarding in younger and more innocent times – surgery to remove the lump should be. This is known as a fine needle aspirate, or FNA, if you are hip to the lingo. With an FNA, you don’t get a piece of the mass, you just suck some cells up into the needle and spooge them out onto a slide. It is much less invasive and doesn’t usually require any sedation or anesthesia, but the trade-off is that it is a less accurate test and less likely than a surgical biopsy to tell you the badness level of the tumor.

Medicine is often like that – the invasive stuff is the most accurate, and the easiest stuff gives you the least useable information. It’s like food where the good stuff tastes bad and the stuff that tastes great kills you.  The universe can seem like a vast, cruel joke some days.

I know this sounds complex, intimidating and potentially invasive – not to mention expensive. The good news is that the take-home on this is pretty simple: spay your pet before she goes into heat, unless you have a rock-solid breeding plan for your purebred pet, and have your veterinarian check out any suspicious lumps. That’s about it. Luckily, your trusted family veterinarian has the skills and knowledge to guide you and your pet through this maze to ensure the highest degree of success.

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    ​​Dr.Rhett Mortenson has been practicing medicine and surgery for over a decade and has dedicated his life to helping animals.

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  • VET CLINIC
    • Hours
    • Contact us
    • About us
  • STAFF
    • Veterinarians >
      • Dr. Rhett Mortenson
      • Dr. Meggie Beal
      • Dr. Chris Milligan
    • Administrative and Technical Staff >
      • Andrea Mortenson
      • Alixe Varnel
    • Nursing Staff >
      • Alyssa Stout
      • Julz Vennard
      • Shae Harris
    • Receptionists >
      • Karisa Roy
      • Laurie Andrews
      • Kaylee Drinkwater
  • GALLERY
  • H.E.A.R.T
    • H.E.A.R.T Recipients
  • EDUCATION CENTER
    • Archived webinars
    • Vets Blog
    • Common conditions >
      • Scratching pets
      • Dental
      • Diarrhea
      • Vomiting and Diarrhea
  • SERVICES
    • Health exam
    • Surgery >
      • General Surgery >
        • Abscess
        • Lumps
        • Neuter
        • Lap spay
      • Laser Surgery
      • Minimally Invasive Surgery
      • Orthopedic surgery
  • DIAGNOSTICS
    • Laboratory Diagnositcs
    • Digital Radiology
    • Ultrasound
  • PARTNERS
  • THEMES OF THE MONTH
    • February
    • March
    • April