Figure 3.Histopathological features of the solid pseudopapillary neoplasm(A) Low-power view showing a well-encapsulated neoplasm with solid and pseudopapillary areas (H&E, ×40). (B) Tumor with a prominent vascular network, including multiple congested, dilated capillaries (H&E, ×100). (C) Solid areas composed of uniform cells separated by delicate capillary-sized vessels (H&E, ×400). (D) Pseudopapillae formed by tumor cell detachment around fibrovascular cores, creating rosette-like structures (H&E, ×400).
