Histiocytoma in Dogs

Histiocytoma in Dogs

What is Histiocytoma?

These growths are common skin tumors that appear on dogs, and are generally self-healing dermal growths singular in number. They are often seen in younger dogs however do take place in dogs of any age. The most typical site where these growths can take place on your dog is on the head, ears and limbs. They appear as raised swellings that move easily when touched, and might become ulcerated. The majority of fix themselves in time without treatment, but surgical elimination is a choice if it is causing a problem for your dog.

A histiocytoma is an external buttonlike growth on your dog that is hairless or with an ulcerated surface area. These are typically benign and are not unpleasant.

Symptoms of Histiocytoma in Dogs

  • Usually a little raised button like growth that appears on the head, ears or limbs
  • Typically it is a single swelling however there can be more
  • The swelling is pain-free, often hairless and the swelling moves easily when touched
  • When they first appear, they grow rapidly within the first 1-4 weeks
  • They might end up being ulcerated or infected, particularly if your dog begins to lick or ‘stress’ the site causing it to bleed and enabling infection to set in.


There are usually two kinds of histiocytomas or tumor-like growths in dogs. The small button like growth is the most typical, and is typically harmless, unless they end up being ulcerated or infected. Normally, these growths occur mainly in younger dogs and vanish in time without any treatment.

The other range are called fibrous histiocytomas and are not well understood. Some soft cell tumors of this type are deadly (cancerous) but they are rare in dogs. They are firm and bumpy in look and can be rather big. These growths need surgical treatment.

Causes of Histiocytoma in Dogs

  • Not a lot is understood about how or what stimulates these growths however the bulk seem to be safe and self-heal given time
  • Usually happening in dogs under six years of age, and are possibly the outcome of growth spurts in the more young dogs
  • These growths are not true cancers where the cell growth is uncontrollable, but are more of an overgrowth of cells during the growing years of your pet
  • No virus or transmittable agent has actually been discovered to promote the growths, but insects such as ticks might send the stimulus through biting and drawing, which might be spread out from dog to dog

Diagnosis of Histiocytoma in Dogs

Medical diagnosis depends upon getting a tissue sample to be able to examine it under a microscope. This is an easy procedure that can be carried out without taking much time.

Your veterinary caretaker will use a needle or a punch biopsy to take a little bit of tissue for evaluation. What that means is they will take a minute sample from the growth so that they can see it under the microscopic lense and determine the kind of cell activity that is happening. Due to the fact that of the mass test (biopsy) results, the choice for treatment can then be made. Checking any ulcer by your vet guarantees treatment so that no more infection can take place.

Dogs that are most at danger from histiocytoma growths are the English Bulldogs, Scottish Terriers, Greyhounds, Boxers, Boston Terriers, and Chinese Shar Peis. If that is your dog’s type, understand and have the veterinarian check them for these conditions.

Histiocytoma in Dogs

Where Do Canine Histiocytomas Appear?Histiocytomas generally appear on dogs below three years old. The growths have a button-like look and they are usually found on the head, neck, ears, and limbs (though they can appear in other locations). Histiocytomas have the tendency to be less than 1 in (2.5 cm) in size.

Treatment of Histiocytoma in Dogs

Generally these growths self-heal, and if the growth is not malignant or if it is not stressing your dog, then leaving it alone and monitoring its development is the simplest solution. Your veterinarian will explain everything to you and will encourage a routine check up to keep track of the growth.

Any ulceration requires the attention of the veterinary care provider to clean and deal with the injury so that it doesn’t worsen. If it is malignant or remains in an area where it is annoying your dog, it can be eliminated surgically. Your dog might need to stay in the health center overnight and will require recovery time after surgery. In addition, if it is malignant a little area around the growth will be gotten rid of, along with the growth itself, to guarantee all the cancer has been removed. The larger and uncommon fibrous histiocytomas will have to be surgically gotten rid of, with the animal under sedation, and stitches may be required.

Recovery of Histiocytoma in Dogs

Keeping your dog from licking or biting the tumor will prevent any inflammation or bleeding. If the area is ulcerated, taking excellent care to keep it tidy and to stop the dog licking the growth is important. If the tumor has been eliminated you have to keep the site dry and clean, make certain any bandaging is kept dry, and report any swelling or bleeding to your vet. Recovery is normally very quick after elimination, with focus on the wound crucial in the first few days later, and a repeat see to the center to assess the recovery.

Reyus Mammadli
Having engineering and medical education, in recent years actively engaged in the study of the development, reproduction of domestic animals. Special attention is paid to the treatment and prevention of diseases of Pets.
Pet Health
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  1. Richard

    A year ago, it was on the head of my brother’s Labrador. Had to do operation. But now the dog looks good and feels good.