What is ear and nose cancer?
The most common cancer of the ears and nose of a cat is known as Squamous Cell Carcinoma (SCC). It only appears on white areas of the ears and nose, not on any pigmented areas. They are highly invasive locally, but usually slow to spread. If left untreated for long enough, they will spread to regional lymph nodes first.
These are initially seen as small scabs. Many owners mistake these as sores from fights or the garden, etc. These non-healing sores/scabs are precancerous changes, and this is the earliest sign owners will see. As the changes progress, we then see more obvious ulceration of affected tissue, weeping and secondary bacterial infections. As the condition progresses severe tissue destruction occurs. These later stages can still be treated but there is a high risk that the cancer has already spread.
The early stages of SCC of the nose can be readily treated with cryotherapy using liquid nitrogen under general anaesthetic. Treated early with cryotherapy, there is little to no obvious changes. Advanced and invasive SCC of the nose has to be treated surgically and results in significant changes to the nose, but it can still be treated in most cases.
SCC of the ear is best treated by removal of the complete ear at the base. Removal of the affected portion only, often leads to recurrent disease in the remaining part of the ear. Removal of the ear at the base rarely leads to recurrence.