Endoscopic ultrasound-guided fine-needle aspiration cytology diagnosis of solid pseudopapillary tumor of the pancreas: A case report and literature review

Figure 1 Endoscopic ultrasound image (EUS) showing a mass in body and tail of the pancreas.

Figure 2 Papillary arrangement composed of delicate fibrovascular core with attached monotonous cuboidal neoplastic cells (A) and adenoid structures composed of cuboidal neoplastic cells (B) (PAP, x 400).

Figure 3 Staining with periodic acid Schiff (PAS) (A) and Alcian-blue (AB) (B) (× 400).

Figure 4 Immunostain for vimentin (A) and CA 19. 9 (B) (x 400).