Verrucous carcinoma is a very serious form of oral cancer and smokeless tobacco use is a primary cause. It is even called the “snuff dipper’s cancer” though it is not the most common form of carcinoma resulting from this nasty habit.
Although verrucous carcinoma has been found in other sites (larynx, ear canal, vagina, penis, bladder, rectum, soles of feet, dentigerous cyst), and has been reported from non-tobacco users, the majority of cases in the oral mucosa are found in people who dip snuff and chew tobacco.
The above information was taken from an excellent resource, the Maxillofacial Center for Diagnostics & Research.
How to play:
You are given a mixed set of pieces in the Pieces Box and a blank Finished Product box. Using the Puzzle Box as a reference, recreate the picture in the Finished Product box. Move the pieces by clicking on the piece you want to move, this selects it, and then on clicking its destination, which places it. You can’t place pieces randomly. The pieces around the placed piece must be their corresponding pieces; left, right, above and below. At any time during play, you can shuffle or reset the pieces, or quit the game.
Don’t be Trippin’ — Stop Your Dippin’.