Gross Appearance

On gross examination, most pancreatic MCNs are in the tail, or the body to tail of the pancreas, and rarely in the body. The tumors are unilocular or multi-locular cystic tumors and tend to contain a large cavity in the center with small cavities in the periphery (fig. 1). The tumors consist of a thick fibrous capsule with colorless and smooth external surfaces, and contain concentrated colorless, slightly brown or hemorrhagic mucinous fluid. The largest pancreatic MCNs measure up to 26 cm in the greatest dimension [6], and the smallest are 2-3 cm.

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