Endoscopic submucosal dissection as alternative to surgery for complicated gastric heterotopic pancreas

Table 1 Patient and lesion characteristics and procedure-related outcomes

Patient No.	Sex	Age	Abdominal pain episodes (times)	Amylase/lipase (U/L)	Endoscopic ultrasonography findings
					Echogenicity, homogeneity	Size change (mm)	Layer
1	F	43	> 10	Not done	Hypoechoic, homogeneous, cystic foci.	10-18	2, 3, 4
2	M	28	3	236/361	Hypoechoic, heterogeneous, cystic foci.	17-50	2, 3, 4
3	F	37	3	Not done	Hypoechoic, homogeneous, cystic foci.	16.9-45	2, 3, 4
4	F	32	2	294/26	Hypoechoic, homogeneous, cystic foci.	15-35	2, 3, 4
5	M	28	> 10	120/32	Hypoechoic, homogeneous, cystic foci.	15-15	2, 3, 4
CT findings at the time of diagnosis				Pathological diagnosis	Procedure time (min)	ESD hospitalization (d)	Follow-up (mon)
Ovoid-shaped lesion with a lobulating contour in the gastric antrum				Heterotopic pancreas	15	3	33
Enhancing mass-like and cystic lesions in the gastric antrum				Heterotopic pancreas	120	4	60
Subepithelial mass with an internal low-density portion in the gastric antrum				Calcification and foreign body reaction	27	3	59
Soft tissue lesion containing a cystic portion and tiny calcification in the gastric antrum				Calcification and foreign body reaction	17	2	45
Enhancing mass-like lesion in the gastric antrum				Heterotopic pancreas	26	2	46

CT: Computed tomography; GHP: Gastric heterotopic pancreas.