Diagnosis and staging of superficial esophageal precursor based on pre-endoscopic resection system comparable to endoscopic resection

Table 1 Clinicopathological characteristics of 217 lesions(203 patients)

Characteristics	Number
Sex (male/female)	150/53
Age, median (range)	60 (31–80)
Location
Upper Esophageal	21
Middle Esophageal	103
Lower Esophageal	94
The length of lesions (cm)	3-10
Histological diagnosis of ER specimens	217
LGIN	13
MGIN	28
HGIN	82
ESCC	94
Histological type of the final diagnosis	217
LGIN	0
MGIN	15
HGIN	106
ESCC	96

ISSN: 1471-2407