Lentigo maligna melanoma is a melanoma in situ on sun-damaged skin. It is a variably brown-pigmented flat patch on the head or neck of elderly patients. Its growth is generally slow, but it can ...

When lentigo first appears in cats, it often pops up on the lips as tiny dots, before spreading to the eyelids, gums, and nose. As the cat ages, the spots become more widespread and may grow larger.