IHC OR Immunohistochemistry markers are of various types
and are positive in different types
of cancers including adenocarcinomas, Hodgkin's disease, sarcomas, renal cell cancers, gastrointestinal stromal tumors (GIST), yolk sac tumors, hepatocellular carcinomas, acute lymphoblastic lymphomas etc. Intraductal pailloma is diagnosed by CD4 markers, and not by IHC markers.
Please discuss with your treating doctor. Take care!