TNM Classification and Staging of Penile Carcinoma

A carcinoma of the penis can be staged using the TNM classification system.

Group	Description	Code
T	primary tumor cannot be assessed	TX
	no evidence of primary tumor	T0
	carcinoma in situ	Tis
	noninvasive verrucous carcinoma	Ta
	tumor invades subepithelial connective tissue	T1
	tumor invades the corpus spongiosum or cavernosum	T2
	tumor invades the urethra or prostate	T3
	tumor invades into adjacent structures	T4
N	regional lymph nodes cannot be assessed	NX
	no regional lymph node metastasis	N0
	metastasis in a single superficial inguinal lymph node	N1
	metastasis in multiple or bilateral superficial inguinal lymph nodes	N2
	metastasis in deep inguinal or pelvic lymph nodes, unilateral or bilateral	N3
M	presence of distant metastasis cannot be assessed	MX
	no definite metastasis	M0
	distant metastasis present	M1

NOTE: This classification is not used for malignant melanomas.

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