Research Article

Reliability of Endoscopic Ultrasound Using Miniprobes and Grayscale Histogram Analysis in Diagnosing Upper Gastrointestinal Subepithelial Lesions

Table 1

Clinical characteristics of patients with SELs.

CharacteristicsCases ()

Sex
 Male282
 Female427
SELs
 GIST281
 Leiomyoma317
 Ectopic pancreas31
 Lipoma33
Age
 GIST57.19.8
 Leiomyoma52.810.9
 Ectopic pancreas50.311.2
 Lipoma50.112.9
Tumor size (cm)
 GIST1.50.9
 Leiomyoma1.20.6
 Ectopic pancreas1.90.9
 Lipoma2.10.9
Tumor location
 Esophagus279
 Stomach378
 Duodenum5
Layer of origin
 Muscularis mucosa242
 Submucosa69
 Muscularis propria350
 Unclear1

SELs: subepithelial lesions; GISTs: gastrointestinal stromal tumors; cm: centimeter.