SMARCB1/INI1-deficient pancreatic undifferentiated rhabdoid carcinoma mimicking solid pseudopapillary neoplasm: A case report and review of the literature

Figure 1 Fine needle aspiration smears of the pancreatic tumor. A: Pseudopapillary growth pattern and discohesive tumor cells (Papanicolaou stain, 40 ×); B: Tumor cells with mild to moderate cytologic atypia and large intracytoplasmic vacuoles (Papanicolaou stain, 400 ×).

Figure 2 Histomorphology of enucleated pancreatic tumor. A: Pseudopapillary growth pattern (Hematoxylin and eosin stain, 40 ×); B: Tumor cells with rhabdoid features (Hematoxylin and eosin stain, 400 ×); C, D: Immunohistochemistry stains of vimentin (C) and SMARCB1/INI1 (D) (100 ×).