Table 1.

Cases of ESC located in the surface epithelium over benign tumors

	Authors	Age	Sex	Submucosal tumor (SMT)	Size of SMT (cm)	Depth of cancer invasion	Subviews and <Management>
1	Marcial-Rojas RA	63	Male	Lipoma	11 × 3.5	Mucosal layer	<Cervical esophagotomy, excision>
2	Iizuka et al	75	Male	Leiomyoma	3.0 × 2.0	Mucosal layer	<Blunt dissection>
3	Watanabe et al	53	Male	Leiomyoma	0.8 × 0.6 × 0.25	Intraepithelium	Dysplasia <Chemotherapy,esophagectomy>
4	Callanan et al	54	Male	Leiomyoma	1.25	Muscular layer	<Esophagectomy>
5	Kuwano et al	45	Male	Leiomyoma	4	Muscular layer	<Esophagectomy>
6		63	Male	Leiomyoma	1	Mucosal layer	Dysplasia <Esophagectomy>
7		71	Male	Lipoma	1.5	Mucosal layer	<Esophagectomy>
8	Yosikane et al	52	Male	Leiomyoma	1.5 × 1.1 × 0.7	Mucosal layer	CIS and dysplasia <Esophagectomy>
9		67	Male	Lipoma	2.8 × 4.5	Intraepithelium	Separate cancer <Esophagectomy>
10	Nagashima et al	61	Male	Leiomyoma	2.9 × 2.0	Lamina propria	<Endoscopic resection>
11	Mizobuchi et al	64	Male	Leiomyoma	0.7 × 0.65	Lamina propria	<Esophagectomy>
12	Fu et al	62	Male	Leiomyoma	2	Mucosal layer	<Endoscopic resection>
13	Present case	73	Male	Leiomyoma	2.0 × 1.5	Submucosal layer	Multiple leiomyomas <Esophagectomy>