We recently came across a case that stained strongly positive with Dako TTF,
but, instead of the usual nuclear staining the staining was cytoplasmic and
granular.  Has anyone else seen this staining pattern?  We have performed
numerous TTF stains before and since and have not come across this before.
Thanks. Tom

Tom Wells, BSc, ART
Supervisor, Immunohistochemistry Laboratory
Lions Gate Hospital
North Vancouver, BC
Canada