I.10 Choroid plexus papilloma

PI10b1 - Click here to make me bigger
PI.10.b1 Choroid plexus papilloma (MT x10). Papillary architecture: a layer of cuboidal or columnar cells lines the connective tissue-vascular axes, which are hyalinized in places and can contain calcifications. When flattened against one another, the cells can give the impression of having long processes forming rudimentary perivascular pseudorosettes. Cells may contain GFAP.