Feasibility of Endoscopy-Assisted Laparoscopic Full-Thickness Resection for Superficial Duodenal Neoplasms

Table 2

Clinicopathological characteristics of duodenal neoplasms.

	Frequency, no. of cases
Location in duodenum, portion (1st/2nd/3rd)
1st	6
2nd (proximal/distal to the papilla)	16 (4/12)
3rd	2
Location in duodenum, dominant tumor-occupying direction (anterior wall/posterior wall/opposite side of ampulla of Vater)
Anterior wall	15
Posterior wall	6
Posterior wall/opposite side of ampulla of Vater	3
Luminal circumference involved by tumor, %
<25	14
25–50	10
51–100	0
Morphology, n
Elevated (submucosal tumor/0-IIa)	18 (4/14)
Depressed (0-IIc)	6
Pathological features, n
NET G1	4
Adenoma	13
Adenocarcinoma	6