Definitive carbon ion radiotherapy for tracheobronchial adenoid cystic carcinoma: a preliminary report

BMC Cancer

Table 1 Characteristics of patients and treatment

Characteristic	Value
No. of patients	18
Age at treatment, y
Median	48.0
Range	30–73
Sex
Male	10
Female	8
ECOG score
0	14
1	4
Smoking history
Yes	5
No	13
Diameter on transversal section, mm
Median	34.0
Range	19.0–54.0
Length on craniocaudal direction, mm
Median	61.5
Range	27.0–109.0
GTV Volume, cm³
Median	42.675
Range	5.61–87.51
Stage^a:
III	7
T3N0M0	7
IV	11
T1N1M0	1
T3N1M0	3
T4N0M0	5
T4N0M1^b	2
Chemotherapy
Yes	2
No	16
Carbon ion radiotherapy
66 GyE / 22 fractions	1
69 GyE / 23 fractions	10
72.6 GyE / 22 fractions	5
82.5–85.8 GyE / 25–26 fractions	2

ECOG Eastern Cooperative Oncology Group, GTV gross tumor volume
^aModified Bhattacharyya staging system [13].
^bOne patient had one solid lung metastatic lesion, and one patient had multiple lung metastases before carbon ion radiotherapy

ISSN: 1471-2407