Role of pancreatoscopy in management of pancreatic disease: A systematic review

Table 3 Per oral pancreatoscopy visual findings for pancreatic ductal abnormalities

	IPMN	Adenocarcinoma	Chronic pancreatitis
Uehara et al[42]	Papillary projections, irregular/nodular mucosa
Jung et al[39]	Papillary projections; Villous protrusions	Tumor vessels; Erosions	Smooth narrowing; White/gray mucosa; Blurred blood vessels
Tajiri et al[54]	Papillary projections; Salmon eggs	Protrusions; Tumor vessels; Friability, erosions	Protein plugs/stones; Edema, erythema, scar
Yamaguchi et al[27]	(1) Hyperplasia/Mild atypia; sessile or semi pedunculated with white color markings; (2) Severe atypia/adenocarcinoma semi pedunculated or villous or vegetative with red color markings
Kodama et al[37]	Papillary projections; Nodular/villous; White/spotty/red marks	Duct cut off; Friability/erosions	Stones, proteins plugs; Scar, erythema; Blurred vessels
Hara et al[33]	CIS/Invasive carcinoma; salmon eggs with vascular pattern; Villous/vegetative protrusions
Yamao et al[41]	Coarse, granular papillary projections with mucus	Papillary projection with tumor vessels; Protrusion/friability	Coarse erythema
Miura et al[48]	(1) High risk - villous/vegetative with tumor vessel; (2) Low risk - sessile / semi pedunculated
El Hajj et al[38]	(1) Invasive - villous/vegetative papillary projections; (2) Noninvasive - granular projections with erythema	Protrusion with tumor vessel; Ulceration; Infiltrative stricture	Coarse, blurred vessels, scarring, erythema and edema