Small Hepatoid Variant of Solid Pseudopapillary Neoplasm of the Pancreas: A Unique Case With Long-term Follow-up. - Matsumoto H; Minaga K; Ueno S; Sone A; Chikugo E; Tonomura K; Nakano S; Uenoyama Y; Ono K; Yamashita Y (DEN open, 2026)