Susan Walzer said:

 (we) had to put the brake on
auto-alcian blue on oesophageal bx's as they sometimes change their minds and want pas for fungus instead and then it is too late.

You could do a combined PAS/Alcian blue.

Terry L Marshall B.A.(Law), M.B.Ch.B., F.R.C.Path
Consultant Histopathologist
Rotherham General Hospital, Yorkshire
terry.marshall@rgh-tr.trent.nhs.uk