As our pets are getting older, it is not uncommon for them to get cancers, just like we (humans) can. Thankfully, there are lots of treatments available for cancer in pets, and in many cases, cancer can be cured or delayed such that our pets can still lead very happy lives.
Potential treatments for cancers include surgery (which can be curative if acted upon quickly enough), chemotherapy, radiation therapy (by referral), and other medical options.
The most important thing is not to delay a diagnosis if we are worried that a pet might have a cancer. Skin cancers are common in pets (eg mast cell tumours in dogs and squamous cell carcinomas in cats) and detecting these cancers quickly is another reason why regular health checks in our pets is so important.