This elderly man has been a sailor and lips get a hammering from the sun. Too often people forget to apply sunscreen to their lips - it is very important. The picture shows a an SCC - squamous cell carcinoma.
This next picture is of the lip of a lady who has also spent many hours on the ocean. This lesion is not a skin cancer although it would almost certainly become a skin cancer if left.
Anyone who is enthused by looking at skin lesions is welcome on this blog. My aim is that we all learn from each other.