Hi - We do hundreds of stains for mast cells each year.  The best we have 
found is either the T-blue, but we use pH 2.5 or a Jenner-Giemsa.  The 
Giemsa will not only stain the mast cells but also bacteria and other 
structures.    I can send our procedures is you want them.  
Cheryl

Cheryl Crowder, BA, HTL(ASCP)
Chief Technologist
Anatomic Pathology
Department of Pathobiological Sciences
School of Veterinary Medicine
Louisiana State University
Skip Bertman Drive
Baton Rouge, LA  70803

225-578-9734
FAX:  225-578-9720



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