AIP in which IDCP is favoured but the criteria are not fully met should be reported as “AIP, suspicious for IDCP”. The diagnosis of cribriform high‐grade PIN should not be made. Such lesions should be reported as “AIP, suspicious for IDCP”. ERG and PTEN immunohistochemistry, if available, could be helpful when HGPIN is in the differential diagnosis. Here, ERG is linked to prostate intraepithelial neoplasia.