Mass Removal Surgery

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Learning that your pet needs surgery can be an overwhelming experience, especially if you are unsure of what the procedure entails. At Anicira, we work with pet parents to ensure that you are well-informed before your pet’s surgery. Our veterinary team provides compassionate care before, during, and after surgery to ensure that your pet is safe and comfortable.

Which masses require surgical removal?

Masses require surgical removal when they cause pain, impact your pet’s health and ability to function, or are cancerous. We recommend that pet parents monitor benign masses for growth and changes.

What is histopathology, and why is it important?

After removing a mass, we strongly recommend it be sent away for histopathology. Histopathology is an analysis of the removed tissue used to learn more about the mass and determine the root cause. Histopathology is performed by veterinary pathologists and is important for diagnosing any illness associated with the mass and determining if further treatment is required.

Pre-Surgical Instructions

Admission Time – Bring your pet to Anicira at 7 am.
Pre-surgical exam – Your pet must be in good health and show no signs of sickness such as coughing, sneezing, or diarrhea.
Medical records – Please bring proof of rabies vaccination if you have not already provided this. If your cat or dog has not been previously vaccinated or lacks proof of vaccination, we will administer a rabies vaccine on the day of surgery. If you have not already sent your medical records, please bring all relevant medical records.

Feeding Instructions
Adult Dogs over 1 year Withhold food for all adult dogs after midnight the evening before surgery. Please ensure water is available at all times.
Adult Cats under 1 year Adult cats can have food without restriction of amount up until 6am the morning of surgery. Please ensure water is available at all times.
Puppies and Kittens under 1 year Feed a small meal (¼ of their typical breakfast) to all puppies and kittens on the morning of surgery. Please ensure water is available at all times.

Mass Removal Surgery

Before surgery, our veterinary team will perform a thorough pre-surgical examination to ensure that your pet is a good candidate for anesthesia. It is strongly recommended that your pet receives pre-anesthetic blood work to ensure that no health concerns go undetected.

Your pet will be under general anesthesia. The surgical team will prepare the surgical site by shaving and then cleaning the area to remove bacteria and decrease risk of potential infection.

The veterinarian will then remove the mass and nearby tissue. The surgical incision is then closed with sutures that may be buried under the skin or external.

Caring for Your Pet After Mass Removal Surgery

Anesthesia may take 24 to 48 hours to wear off.

  • Your pet may be groggy or whiny during this time.
  • Keep your pet confined in a secure, quiet, and comfortable space. We recommend a crate or a small room.
  • Isolate them from other pets and children while recovering.

Make sure your pet wears their Elizabethan Collar (E Collar / Cone)

  • Your pet’s surgical site will take 10 to 14 days to heal. During this period, they should wear an e-collar at all times.
  • Allowing your pet to lick their incision can lead to infection or dehiscence (opening of the incision).

Offer food & water after surgery

  • When your pet returns home, offer them food and water
  • Anesthesia may cause nausea so your pet may not be interested in food
  • If vomiting occurs, wait 12 hours before offering more food.
  • Resume regular feeding the day after surgery. Your pet’s appetite should be back to normal within 24 hours.
  • If your pet refuses to eat, you may try offering a bland diet such as white rice and lean protein (for example boiled chicken breast) while they regain a normal appetite.
  • Please do not feed your pet junk food, table scraps, or milk.

Give all medications as directed

  • Your pet will be sent home with oral pain medication. Please follow the instructions on the label.
  • If possible, please give the pain medication with food. If your pet has no appetite, please ensure they still take the pain medication.
  • OTC pain relievers such as Tylenol and Advil are toxic to pets. Please do not give these to your pet.

Check surgical incision daily for the first week

  • Your pet’s surgical site will be healing for 10-14 days.
  • What you see on the day of surgery is what we consider normal
  • Monitor for increased redness, swelling, discharge or pulling apart of the incision.

Other shaved areas

  • Your pet may have shaved areas on one or more legs from where an IV catheter was placed, as well as under the tail for monitoring equipment during anesthesia.
  • These areas may be irritated or bruised. If your pet is excessively licking, please use a taste deterrent spray or e-collar to prevent self-trauma.
  • If your pet went home with a brightly colored wrap on their leg, this should be removed 30 minutes after returning home.

Limit your pet’s activity and keep them clean, dry, and warm for 10 days after surgery.

  • Ensure your pet is supervised around all potential hazards (including stairs)
  • Pets should be kept indoors so they can stay clean, dry, and warm.
  • Dogs should be walked outside on a leash to urinate and defecate. No off-leash activity during the entire recovery period.
  • No running, jumping, playing, swimming, or other strenuous activity.
  • Do not bathe your pet or have it groomed during the recovery period.

If your pet has sutures, schedule an appointment for removal in 10-14 days.

  • Your pet may need to be sedated for the suture removal procedure so please plan accordingly.

How effective is mass removal surgery?

Mass removal surgery cures some tumors, and they do not return. Some tumors are more aggressive and may return after surgery.

Potential complications

Complications from a mass removal are rare. If your pet experiences these issues after surgery, please contact Anicira.

  • Hemorrhaging
  • Infection of surgical site
  • Fluid build-up (seroma)
  • Dehiscence of the surgical site – both sides of the surgical site should be touching.
  • Watch for any gapping.
  • Discharge at the surgical site

Please contact Anicira, your primary care veterinarian, or an emergency clinic if any of the following occur:

  • Pale gums
  • Severe pain, depression or weakness
  • Vomiting or Diarrhea
  • Labored breathing
  • Decreased appetite for more than 24 hours
  • Lethargy lasting more than 24 hours