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Retrospective Study
©The Author(s) 2026.
World J Gastrointest Endosc. Feb 16, 2026; 18(2): 113393
Published online Feb 16, 2026. doi: 10.4253/wjge.v18.i2.113393
Table 3 Endoscopic ultrasound characteristics according to nature of head mass, n (%)
Characteristic
Malignant lesion (n = 25)
Benign lesion (n = 14)
P value
Dilated CBD19 (76)9 (64.3)0.43
Dilated PD19 (76)8 (57.1)0.22
Double duct sign14 (56)6 (42.9)0.43
CBD diameter (mm)12.8 ± 4.810.9 ± 3.50.19
PD diameter (mm)5.2 ± 2.53.3 ± 10.01
Max diameter of lesion (mm)32.2 ± 1231.4 ± 3.20.75
Duct penetration 3 (12)7 (50)0.03
Surrounding vascular encasement5 (20)00.14
Significant peripancreatic LAP9 (36)1 (7.1)0.1
Calcification with in the lesion2 (8)2 (14.3)0.6
EchogenicityHypoechoic - 16 (64)Hypoechoic - 5 (35.7)0.09
Heteroechoic - 9 (36)Heteroechoic - 9 (64.3)
ElastographyHeterogenous; predominantly blue - 20 (80)Heterogenous; predominantly blue- 3 (21.4)0.01
Heterogenous; predominantly green - 5 (20)Heterogenous; predominantly green - 11 (78.6)
Strain ratio26 ± 7.2 (n = 13)14.8 ± 10.2 (n = 6)0.02


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