What are the symptoms of mast cell tumour?

A lump on the skin with a VERY variable appearance (it can look like a wart, a pimple or an inflamed area). The lump may change in size, redden or swell from one day to the next. Sometimes it is itchy. Breeds such as the Boxer, Bulldog, Pug and Labrador are at higher risk

Is Mast cell tumour contagious?

Mast cell tumour does not spread directly between animals.

Tumores y cáncer

Mast cell tumour

A very common skin tumour in dogs. Its behaviour is highly variable: from benign to aggressive. It is known as "the great imitator" because it can look like almost anything.

Severe🐕 Dogs🐈 Cats

Symptoms to watch for

• A lump on the skin with a VERY variable appearance (it can look like a wart, a pimple or an inflamed area)
• The lump may change in size, redden or swell from one day to the next
• Sometimes it is itchy
• Breeds such as the Boxer, Bulldog, Pug and Labrador are at higher risk

Causes

A tumour of the mast cells (skin cells). The cause is not fully understood; there is a breed predisposition.

Diagnosis

Fine-needle aspiration of the lump (cytology) — which is why you should NOT wait with any new lump. A biopsy after removal gives the grade, which is key to the prognosis.

Treatment

Surgery with wide margins is the main treatment. Depending on the grade and extent, radiotherapy or medication may be added. The tumour grade has a major influence on the prognosis.

Prevention

Not preventable. The key is to have any new skin lump checked without delay.

When should you see the vet?

See your vet to have ANY new lump on the skin sampled — a mast cell tumour can look harmless. Detecting it early and removing it properly is what makes the difference.

Consult a vet

WetAi guides you and takes you to the vet; it does not diagnose.

Notice: this information is for general guidance and educational purposes only. It does NOT replace diagnosis or treatment by a registered veterinary surgeon. If you notice any symptoms, always consult a professional. Wallapets accepts no responsibility for the use of this information without veterinary supervision.