ABSTRACT
Tumors of the prostate 788 Epithelial lesions, benign 788
Adenoid basal cell tumor (adenoid cystic-like tumor) 788 Adenosis/adenomatous hyperplasia 789
Atypical adenosis 789 Basal cell hyperplasia 790
Atypical basal cell hyperplasia 790 Sclerosing basal cell hyperplasia 790
Benign cribriform lesions (clear cell cribriform hyperplasia) 790 Benign prostatic hyperplasia (BPH) 790
Verumontanum mucosal gland hyperplasia 790 ‘Melanosis’ of the prostate 790
Epithelial polyps of the prostatic urethra 791 Prostatic-type epithelial polyps 791 Adenomatoid or nephrogenic-type polyps 791
Post-atrophic hyperplasia 792 Sclerosing adenosis 793
Prostatic carcinomas 793 Ductal adenocarcinoma 798 Mixed ductal-acinar carcinoma 798 Signet ring cell carcinoma 799 Carcinosarcoma/sarcomatoid carcinoma 799 Adenocarcinoma with neuroendocrine cells 799 Neuroendocrine/small undifferentiated cell
carcinoma 799 Squamous cell carcinoma 799 Adenosquamous carcinoma 799 Adenocarcinoma with oncocytic features 799 Lymphoepithelial-like carcinoma 800 Adenoid cystic carcinoma/basal cell carcinoma 800 Prostatic carcinoma with treatment effect
(androgen-deprivation therapy) 800 Prostatic adenocarcinoma resembling benign
hyperplastic glands 800 Transitional cell carcinoma 800
Prostatic intraepithelial neoplasia (PIN) 801 Low-grade PIN 801 High-grade PIN 801
Rare primary tumors 803 Malignant lymphoma 803 Malignant melanoma 803
Sarcomas and related proliferative lesions of the specialized prostatic stroma 803
Prostatic stromal proliferation of uncertain malignant potential 804
Prostatic stromal sarcoma 804 Leiomyosarcoma 804
Malignant phyllodes tumor 804 Other sarcomas 804
Secondary metastasis 804
Tumors of the urethra 804 Benign urethral lesions 804
Collagen polyp of the urinary tract 804 Fibroepithelial polyp 805
Malignant urethral lesions 805 Primary adenocarcinoma 805 Primary malignant melanoma 805 Primary mucosa-associated lymphoid tissue
(MALT) lymphoma 805 Primary neuroendocrine carcinoma 805
Tumors of the testis 805 Germ cell tumors 805
Carcinoma in situ (CIS)/intratubular germ cell neoplasia (ITGN) 807
Polyembryoma 809 Seminoma 809 Spermatocytic seminoma 811 Teratomas 812 Yolk sac tumor (infantile embryonal carcinoma/
endodermal sinus tumor) 814
Rete testis tumors 814 Adenomatous hyperplasia 814 Carcinoma 814
Sertoli cell tumors 815 Hamartomatous nodules and adenoma in testicular
feminization (androgen insensitivity) syndrome 815 Sertoli cell tumor 816 Sertoli cell tumor, large calcifying 816 Sertoli cell tumor, sclerosing 817
Sex cord-stromal tumors 817 Leydig cell tumor 817
Tumors of the paratesticular region 819 Neoplastic and non-neoplastic proliferations of the
testicular collecting system 819 Cysts and epithelial proliferations 819
Epididymal lesions 819 Epididymal cysts 819 Epididymal papillary cystadenoma 819 Epididymal carcinoma 819 Epididymal metastatic tumors 819
Paratesticular lymphoreticular tumors 819 Plasmacytoma 819 Granulocytic sarcoma 819 Malignant lymphoma 819
Paratesticular mesothelial tumors 819 Mesothelial hyperplasia 820 Mesothelial cysts 820 Adenomatoid tumor 820 Benign cystic mesothelioma 820 Mesothelioma 820
Paratesticular ovarian-type epithelial tumors 820 Serous borderline tumor 820 Serous papillary carcinoma 820
Paratesticular soft tissue tumors 820 Paratesticular tumor-like lesions 821
Cribriform ‘hyperplasia’ of epididymis 821 Monstrous epithelial cells in human epididymis
and seminal vesicles 821
Leydig cells outside the testicular parenchyma 821 Malakoplakia 821 Vasitis nodosa 821 Paratesticular benign fibrous proliferations 822 Inflammatory myofibroblastic (pseudotumor) tumor 822 Tumor of the adrenogenital syndrome and
related lesions 822 Sclerosing lipogranuloma 822 Splenic-gonadal fusion 822 Smooth muscle hyperplasia 822 Miscellaneous lesions 823
Tumors and pseudotumors of the seminal vesicles 823 Cystic epithelial-stromal tumor 823 Seminal vesicle involvement by in situ and invasive
transitional cell carcinoma of the bladder 823 Seminal vesicle involvement by prostate cancer 823
Tumors and tumor-like conditions of the male genital tract are frequently encountered in general practice. Tremendous advances have been made in this field during the past ten years or so,
with new tumor classifications having been developed and new immunohistochemical techniques introduced.
