Fig. 2

Pathological findings of the pancreatic tumor. The cut surface of the surgical specimen shows a solid yellowish-white tumor. The mass is well demarcated and localized to the pancreas (A). Marked inflammatory cell infiltration is also observed. At low magnification, the tumor cells are obscured by inflammatory cells. Slit-like dilated vessels are scattered (B). The majority of the lesion is composed of inflammatory cells. A few epithelioid cells with large round nuclei, distinct nucleoli, and eosinophilic granular cytoplasm are observed. Atypical spindle cells are also observed (C). Some tumor cells exhibit capillary-like structures (D)