Finding a new lump on your dog or cat is scary, but it does not always mean something serious. Many masses are benign; others need surgery and analysis to rule out cancer. The key is not to wait and see what happens.
Tumor removal is part of soft tissue surgery. Here we explain which types of masses exist, how to know whether to worry, and what the procedure involves at Medical Pets Ensenada.
What is a mass or tumor?
A mass is any abnormal lump of tissue. It can appear on the skin, under it or in an internal organ. The term tumor does not always mean cancer: it refers to a growth, which can be benign, when it is localized and does not spread, or malignant, when it is cancerous and can invade or spread.
Benign or malignant: why analysis matters
You cannot know for certain whether a mass is benign or malignant just by looking. That is why, when it is removed, it is usually sent for laboratory study, called histopathology. That analysis confirms the type of tumor and whether it was fully removed.
Before operating, in some cases a fine needle sample is taken to guide the diagnosis. The decision to operate depends on the size, location, growth rate and overall health of your pet.
Warning signs in a lump
A prompt veterinary assessment is advisable if the lump:
- Grows quickly or changes in shape, color or texture.
- Is fixed to deep tissues and does not move.
- Bleeds, ulcerates or oozes.
- Bothers your pet, is painful or is licked constantly.
- Appears together with weight loss, lethargy or loss of appetite.
The practical rule is simple: any lump that lasts more than two to four weeks, or that grows, deserves a checkup.
What the removal surgery is like
Removal is performed under general anesthesia. The surgeon removes the mass along with a margin of healthy tissue around it, to reduce the risk of regrowth. For small skin masses it is a short procedure; for internal or large tumors, the surgery is more complex.
We work with a pre-surgical assessment, monitored balanced anesthesia and pain control, as in all our veterinary surgery.
Recovery
Recovery is usually 10 to 14 days. Wound care, the Elizabethan collar and limiting exercise are essential. Find the full guide in postoperative care.
Frequently asked questions
Are all lumps cancer?
No. Many masses in dogs and cats are benign, such as lipomas, which are fatty accumulations. However, it cannot be confirmed by sight, so it is recommended to have it checked and, when removed, to analyze the mass in a laboratory.
When should a tumor be operated on?
Surgery is recommended when the lump grows, bothers the pet, bleeds, is in a risky area, or when analysis suggests it is malignant. Your veterinarian assesses the size, location and overall health of your pet to decide.
What is histopathology?
It is the laboratory study of the removed mass. It confirms what type of tumor it was, whether it is benign or malignant, and whether it was fully removed. It is the most reliable way to know what we are dealing with.
Can my senior pet have surgery?
Age alone does not prevent surgery. With a pre-surgical assessment and blood work, many senior pets undergo surgery safely. The risk is evaluated case by case.
How do I schedule a checkup?
You can book a consultation so we can check your pet lump. The sooner it is assessed, the more treatment options there are.