PTPR has a similar histologic architecture to ependymoma and choroid plexus tumors [2,6]. PTPR usually has an epithelial-type growth pattern with layers of tumor cells covering vessels and creating perivascular pseudorosettes with a similar immunohistochemical (IHC) profile to choroid plexus tumors [6]. Here, PTPRR is linked to choroid plexus neoplasm.