Rules for Classification

The classification applies to carcinomas of the urethra (ICD‐O‐3 C68.0) and transitional cell carcinomas of the prostate (ICD‐O‐3 C61.9) and prostatic urethra. There should be histological or cytological confirmation of the disease.

Regional Lymph Nodes (Fig. 490)

The regional lymph nodes are the inguinal and the pelvic nodes. Laterality does not affect the N classification.

TNM Clinical Classification

T – Primary Tumour

TX	Primary tumour cannot be assessed
T0	No evidence of primary tumour

Urethra (Male and Female)

Ta	Noninvasive papillary, polypoid, or verrucous carcinoma (Figs. 530, 531)
Tis	Carcinoma in situ
T1	Tumour invades subepithelial connective tissue (Figs. 530, 532)
T2	Tumour invades any of the following: corpus spongiosum, prostate, periurethral muscle (Figs. 530, 533, 534)
T3	Tumour invades any of the following: corpus cavernosum, beyond prostatic capsule, bladder neck (extraprostatic extension) (Figs. 535, 536, 537)
T4	Tumour invades other adjacent organs (invasion of the bladder) (Fig. 538)

Prostatic urethra

Tis	Carcinoma in situ, involving prostatic urethra, periurethral or prostatic ducts without stromal invasion (Figs. 539, 540)
T1	Tumour invades subepithelial connective tissue (for tumours involving prostatic urethra only) (Figs. 540, 541)
T2	Tumour invades any of the following: prostatic stroma, corpus spongiosum, periurethral muscle (Figs. 540, 541)
T3	Tumour invades any of the following: corpus cavernosum, beyond prostatic capsule, bladder neck (extraprostatic extension) (Fig. 542)
T4	Tumour invades other adjacent organs (invasion of bladder) (Fig. 543)