Papillary Tumor of the Pineal Region: MR Signal Intensity Correlated to Histopathology

Figure 2

Histology of the tumor showing papillary projections (a) based on hematoxylin eosin (HE) staining. Immunohistochemistry showing 20% positive Ki67 (b) and the high expression of cytokeratin, an immunophenotype characteristic of PTPR (c).

(a)

(b)

(c)