Feasibility and safety of endoscopic cryoablation at the duodenal papilla: Porcine model

Table 2 Histology findings

Swine	Baseline1		Day 72
	Crypt architecture	Inflammation	Crypt Architecture	Inflammation
1	Normal	None	Moderate necrosis	Moderate
2	Normal	None	Moderate necrosis and extensive debris	Moderate to severe
3	Normal	None	Severe necrosis and moderate debris	Severe with dense fibrosis
4	Normal	None	Moderate necrosis and extensive debris	Moderate

¹Mucosal biopsies of duodenal papilla prior to cryotherapy;

²Mucosal biopsies obtained from cryotherapy site at duodenal papilla 7 d following liquid nitrogen cryospray application.