Contrast-enhanced endoscopic ultrasound in discrimination between focal pancreatitis and pancreatic cancer

Table 1 Endosonographic criteria for differentiation between malignant and benign diseases

Kind of lesion	Vessel architecture using conventional power mode	Arterial or venous in the lesion using continuous duplex scanning	Vessel architecture using contrastenhanced power mode
Pancreatic cancer	No visible vascularisation	Only arterial vessels	Irregular, chaotic vessels
Focal pancreatitis	Nearly no visible vascularisation	Both arterial and venous vessels in the lesion	Regular with no changing diameter

Table 2 Endoscopic findings in B-mode ultrasound in patients with pancreatic carcinoma and focal chronic pancreatitis

		Pancreatic carcinoma	Chronicpancreatitis
Good quality of imaging		56	30
Localization	Head	35	25
	Corpus	12	4
	Tail	9	1
Size (cm –SD)		3.8 (1.09)	3.02 (0.94)
Echogeneicity	Hypoechoic	41	3
	Mixed echoic	15	27
Borders	Clear	15	25
	Irregular	41	5
Structure	Irregular	41	5
	Regular	15	25
Ducts	Dilated	39	6
	Not dilated	17	24
Lymphnodes	Visible	15	4
	Not present	41	26
Invasion	Visible	23	0
	Not visible	33	30