Monarch Disease Ontology id MONDO_0006234 (grade III prostatic intraepithelial neoplasia) is high grade prostatic intraepithelial neoplasia characterized by the presence of severe architectural and cytologic abnormalities. Also known as: PIN III, adenocarcinoma in situ of prostate, adenocarcinoma in situ of the prostate, carcinoma in situ of prostate, carcinoma in situ of prostate gland, grade 3 pin, grade 3 prostatic intraepithelial neoplasia, grade III pin.