SKIN - Squamous cell carcinoma

This is a disc of skin, some 6 cm. across, showing a fungating, umbilicated tumour, from which a slice has been removed for histology. The surrounding skin is dark in colour.
This lesion was from the cheek of a woman in the Soloman Islands and, as a well-differentiated, squamous cell carcinoma, is remarkable for its size. We are told that the lymph nodes were not involved.