Role of endoscopic ultrasound in the characterization of solid pseudopapillary neoplasm of the pancreas

Figure 1 Endoscopic ultrasound characteristic of solid pseudopapillary tumors.

Figure 2 Endoscopic ultrasound. A: A large heterogeneous solid pseudopapillary neoplasm in the pancreatic head; B: A large heterogeneous solid pseudopapillary neoplasm with calcific spots in the pancreatic head; C: A cystic solid pseudopapillary neoplasm in the pancreatic body.

Figure 3 A large heterogeneous firm solid pseudopapillary neoplasm in the pancreatic head with dominant blue color denoting grade 3 Elasticity score.

Figure 4 Smears of solid pseudopapillary pancreatic tumor. A and B: Clusters of uniform epithelioid cells arranged in a vague papillary like formation (Hematoxylin & Eosin × 40); C: Cell block of same tumor (Hematoxylin & Eosin × 400); D: Positive nuclear B-Catenin immunoreaction in tumor cells (Hematoxylin & Eosin × 400); E: Positive cytoplasmic Synatophysin immunoreaction in tumor cells (Hematoxylin & Eosin × 400); F: Negative Chromogranin immunoreaction (Hematoxylin & Eosin × 400).

Figure 5 A post-operative specimen of mixed solid pseudopapillary neoplasm with solid and cystic areas.