Check out our atoxic, ready to use (no other fixing steps requested), fast drying markers for surgical margins. They do not spread in the tissue or do not lose their colours in solvents during fixation and tissue processing. Applicable on fresh or fixed specimens.
Check the banner at:
ThePathologist - https://thepathologist.com/fileadmin/pdf/TP_Issues/TP_Issue_0720.pdf
or the video at: https://www.youtube.com/watch?v=Kee4B0Kzm4U&t=26s