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Table 1 Patient and tumour characteristics

From: Definitive and adjuvant radiotherapy for sinonasal squamous cell carcinomas: a single institutional experience

Characteristics Number (n = 43) Percent
Gender
 Male 25 60
 Female 18 40
Tobacco use at diagnosis
 Ex smoker 8 19
 Current smoker 15 35
 No smoker 7 16
 Not documented 13 30
Tumour localisation
 Maxillary sinus 20 47
 Ethmoid sinus 1 2
 Nasal cavity 22 51
  Nasal vestibule 10 23
  Nasal septum 3 7
  Floor and lateral wall 9 21
T stage
 T0 0 0
 T1 6 14
 T2 6 14
 T3 2 5
 T4a 23 53
 T4b 6 14
N stage   
 N0 38 88
 N1 4 9
 N2a 0 0
 N2b 0 0
 N2c 1 3
Stage group (AJCC 2010)
 I 6 14
 II 6 14
 III 2 5
 IVa 23 53
 IVb 6 14
Histopathology
 SCC 43 100
Histopathological differentiation
 Well differentiated 7 16
 Moderately differentiated 18 40
 Poorly differentiated 10 23
 Undifferentiated 3 7
 Not documented 6 14
Nodal involvement
 Yes 3 7
 No 40 93
Nodal ECE
 Yes 1 20
 No 4 80
Tumor invasion
 Cranial 2 5
 Orbital 2 5
 Skin 7 16