Extrapancreatic solid pseudopapillary neoplasm followed by multiple metastases: Case report

Figure 1 An abdominal computed tomography scan exhibited solid and mixed cystic lesions, measuring > 28 cm diameter (black arrow). The tumor was apart from the pancreas (white arrow).

Figure 2 Histological and immunohistochemical findings of the tumor (× 200). The tumor cells are arranged in solid sheets, pseudopapillary and microcysts (A and B: Hematoxylin-eosin stain), and are immunohistochemically positive for alpha-1-antitrypsin (C), β-catenin (D: Cytoplasmic and nuclear staining), CD56 (E), whereas negative for chromogranin (F).

Figure 3 An abdominal computed tomography scan exhibited multiple tumors in peritoneum, greater omentum, and colonic wall (white arrow).