Are There Contagious Tumors In Dogs?
In the dog world there are some types of contagious tumors. It is, specifically, a cancer unique in its style. Transmissible venereal tumor (TVT) is a form of cancer that only dogs develop and, unlike other tumors, is contagious.
What are contagious tumors?
Canine venereal cancer is the oldest known type of tumor, but it only spreads among dogs. Other animal species, such as Syrian hamsters and molluscs, can also develop other types of cancer that can be contagious.
How do these malignant tumors spread?
In the case of dogs, venereal cancer usually spreads when mating occurs, or when one of the canines sniffs or licks any of the affected mucous membranes. That’s why this type of tumor usually develops in the genital area of dogs, although it can also affect other areas, such as the nose.
The interesting thing about these contagious tumors is that they have a completely different and unique behavior compared to most tumors that affect other living things. These cancers have evolved to migrate and find new tissues that allow them to continue to develop.
Due to these peculiarities of the tumor, dogs become infected when they come in contact with cancer cells from another dog. That is, the presence of a virus or other form of contagion is not necessary. In this way, cancer cells pass from one animal to another and manage to live much longer.
patient zero
Different investigations concluded that this type of tumor retains a different DNA from the carrier. Most tumors are formed when affected cells mutate uncontrollably. Because of this process, tumors have the DNA of the carrier. However, this does not happen with venereal cancer in dogs.
Researchers estimate that this type of tumor developed about 11,000 years ago. He’s been evolving and adapting, so his aggressiveness level is high.
It is a cancer that responds very well to treatments, so it is unlikely that it will metastasize in the animal. However, there is always that possibility. But if we compare it with other types of cancer, TVT is considered one of the least aggressive.
Can TVT broadcast be prevented?
Dog owners can take steps to try to avoid exposing their pet to this type of tumor. One of the most invasive recommendations is to spay dogs. The ideal age for this is when the dog is 12 months old or, in the case of a large breed, when it is 18 months old.
The reason sterilization is so important in these cases is because the spread of this tumor usually occurs when dogs are mated. Sterilization extracts the animal’s reproductive organs and reduces the chances of the dog being infected.
Likewise, it is also recommended to keep dogs in a controlled environment. Another issue to control is taking our pet to the vet regularly, especially if the owner notices any major changes. It is not always easy to locate the symptoms of an internal tumor in animals.
In the case of TVTs, dogs often develop a bloody red spot. The habit of maintaining good hygiene, both at home and in the animal, is also fundamental for its good health.
Conclusion
In fact, there are contagious tumors. In the case of dogs, it is a type of venereal cancer that is usually transmitted at the time of mating.
However, in smaller proportions, it can also be acquired by sniffing or licking the affected area. It is advisable to spay dogs and keep them in a controlled environment to prevent the spread of this type of tumor.
