Differential diagnosis of pancreatic serous oligocystic adenoma and mucinous cystic neoplasm with spectral CT imaging: initial results.

•Tumor location, contour, and size were the important factors in differentiating MCNs from SOA.•MCNs had higher monochromatic CT values at 40 keV to 70 keV, iodine concentration, and effective-Z than SOA did.•CT spectral imaging provided additional information for differentiating MCNs from SOA.•Multi-parametric analysis obtained better performance than single-parameter in differentiating MCNs from SOA.