male reproductive system neoplasm (Monarch Disease Ontology identifier MONDO_0024582) is a benign, borderline, or malignant neoplasm that affects the male reproductive system. Representative examples include benign prostate phyllodes tumor, benign testicular Sertoli cell tumor, prostatic intraepithelial neoplasia, prostate carcinoma, testicular seminoma, and testicular embryonal carcinoma. Also known as: Male reproductive system neoplasm, Male reproductive system tumor, Male reproductive system tumour, male reproductive organ neoplasm, male reproductive organ tumor, male reproductive organ tumour, neoplasm of Male reproductive system, neoplasm of male reproductive organ.