Fig. 2.

Case 2 was similar to case 1, with cellular basophilic nests scattered within a modestly cellular stroma (A). The nests were predominantly neural, with pseudorosettes and abundant neuropil-like stroma (B), but there was focal evidence of epithelial differentiation, here in the form of mucinous cells (C). There were additional dilated gland-like structures that could have been part of the tumor or entrapped elements (D). Focal ghost cells were noted (E). The tumor was diffusely positive for STAT6 within only the spindle cells of the tumor (F)