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Table 1 patient baseline characteristics

From: Raster-scanned carbon ion therapy for malignant salivary gland tumors: acute toxicity and initial treatment response

  Re-irradiation visible residual tumor R1/Pn+ resected tumors
patient number 16 60 43
prior surgery 5 26 43
visible residual/no prior surgery 15 60 0
R1/Pn+ 1 0 43
recurrent tumors 16 26 9
re-irradiation 16 15 1
Stages (TNM 7th edition 2010)    
T1   1 8
T2   2 7
T3 4 10 7
T4 12 45 15
Tx   1 6
Not applicable   1  
N0    
N1    1
N2a   2  
N2b 1 3 4
N2c   1 1
histology    
adenoid cystic carcinoma 13 52 38
mucoepidermoid carcinoma 1 2 3
acinic cell carcinoma 1 3  
adenocarcinoma   1 1
squamous cell carcinoma 1 1 1
MSGT NOS   1  
site    
base of skull 6 9 1
intracranial extension   2  
orbit 1 4  
orbit/pterygopalatine fossa 4 2 1
petrous bone   1  
nasal cavity   1 1
paranasal sinus 3 16 7
maxilla   1 2
palate   1 6
planum buccale    1
nasopharynx   3  
oropharynx   1  
external auditory canal 1 2  
parotid gland 1 12 17
submandibular gland   2 5
sublingual gland    2
base of tongue   2  
lacrimal gland   1