Incidence of brain metastasis in patients with esophageal carcinoma

Table 1 Summary of patient characteristics

Characteristics
No. of patients	53
Age (mean, yr)	68 (40-92)
Gender	44 male, 9 female
Length of follow-up (mean, mo)	16, (2-72)
Histology of primary tumor
Adenocarcinoma	44
Squamous cell carcinoma	9
Grade of tumor
1	2
2	13
3	19
4	7
Unknown	12
Stage
IIA	5
IIB	2
III	18
IVA	8
IVB	17
Unknown	3
Treatment
Chemo-radiation/surgery	10
Chemo-radiation	22
Surgery/chemo-radiation	4
Surgery/radiation	4
Radiation (palliative)	13
Sites of metastases
Brain	7
Liver	14
Lung	1
Chest	1
Spine	3
Other	8

Table 2 Characteristics of patients with brain metastasis

Characteristics
No. of patients	7
Age (mean, yr)	66 (57-75)
Gender	6 male, 1 female
Histology of primary tumor
Adenocarcinoma	7
Squamous cell carcinoma	0
Grade of tumor
2	1
3	3
4	2
Unknown	1
Stage
IIA	1
III	2
IVA	2
IVB	2
Treatment
Chemo-radiation/surgery	3
Chemo-radiation	2
Surgery/chemo-radiation	1
Surgery/radiation	1
Radiation (palliative)	0
Time between original diagnosis and brain metastasis (mean, mo)	10, (2-25)