Table V.

Authors’ Personal Approach to Diagnosis of and Grading IDC-P.

Scenarios	Include IDC-P in Gleason score?	Perform IHC for basal cell stain?
Isolated IDC-P	No	Yes
IDC-P with PCa (GS = 6)	No	Yes
IDC-P with PCa (GS ≥ 7)	Yes	No, even if the result might affect the Grade Group

The presence of IDC-P should always be reported with a comment on its prognostic significance, particularly in the first two scenarios.

GS, Gleason score; IDC-P, intraductal carcinoma of the prostate; PCa, prostatic adenocarcinoma; IHC, immunohistochemistry