Table 1 The 2022 WHO classification of urinary tract tumors
From: Multidetector computed tomography evaluation of bladder lesions
Urothelial tumors | Â |
|---|---|
Noninvasive urothelial neoplasms | Urothelial papilloma Urothelial papilloma, inverted Papillary urothelial neoplasm of low malignant potential Noninvasive papillary urothelial carcinoma, low grade Noninvasive papillary urothelial carcinoma, high grade Urothelial carcinoma in situ |
Invasive urothelial neoplasms | Invasive urothelial carcinoma |
Squamous cell neoplasms of the urinary tract | Â |
| Â | Squamous papilloma |
Squamous cell carcinomas of the urinary tract | Verrucous carcinoma Pure squamous carcinoma of the urothelial tract |
Glandular neoplasms | Â |
Adenomas | Villous adenoma Tubular adenoma Tubulovillous adenoma |
Adenocarcinomas | Adenocarcinoma, NOS Enteric adenocarcinoma Mucinous adenocarcinoma Mixed adenocarcinoma Signet ring cell adenocarcinoma Adenocarcinoma in situ |
Urachal and diverticular neoplasms | Â |
| Â | Urachal carcinoma Invasive urothelial carcinoma |
Urethral neoplasms | Â |
Urethral accessory gland carcinomas | Carcinoma of Littré glands Carcinoma of Skene glands Carcinoma of Cowper glands |
Tumors of Mullerian type | Â |
| Â | Clear cell carcinoma Endometrioid carcinoma |