Dear HistoNet Colleagues,

     I frequently perform Mallory’s PTAH stain.  All of the techniques 
I have found require mordanting in Zenker’s solution, which contains 
mercury.  Because of the hazards of mercury, I would like to find an 
alternative stain that will satisfy my pathologists’ needs, or find a 
suitable replacement for mercury-containing Zenker’s solution.

     I would greatly appreciate any ideas you might have.  Thank you all very 
much!

Best regards,
Kim Atkin HT (ASCP)