Radiation-induced sarcomas of the head and neck

Table 5 TNM staging system for rhabdomyosarcoma

Stage	Sites	Tumor stage invasiveness	T stage size	N	M
1	Orbit Head and neck Genitourinary Biliary tract	T1 or T2	a or b	Any N	M0
2	Bladder/prostate Extremity Cranial parameningeal OtherΔ	T1 or T2	a	N0 or NX	M0
3	Bladder/prostate Extremity Cranial parameningeal OtherΔ	T1 or T2	a b	N1 Any N	M0
4	All	T1 or T2	a or b	N0 or N1	M1

T: Tumor stage; T1: Confined to anatomic site of origin; T2: Extension; a: ≤ 5 cm in diameter; b: > 5 cm in diameter; N: Regional nodes; N0: Not clinically involved; N1: Clinically involved; NX: Clinical status unknown; M: Metastases; M0: No distant metastases; M1: Distant metastases present.