Published in:
Brain Pathology, 21 (2011) 6, Seite 672-677
Language:
English
DOI:
10.1111/j.1750-3639.2011.00493.x
ISSN:
1015-6305;
1750-3639
Origination:
Footnote:
Description:
AbstractPrimary papillary tumors of the central nervous system and particularly the pineal region are rare. Papillary tumor of the pineal region (PTPR) is a recently described neoplasm that has been formally recognized in the 2007 World Health Organization Classification of Tumors of the Nervous System. Because of their rarity, further pheno‐ and genotypical observations as well as therapeutic experience are necessary to differentiate PTPR from other primary or secondary papillary tumors of this region. We herein present three cases of PTPR characterized by local recurrence in two of them. Primary and recurrent tumors were analyzed by immunohistochemistry and comparative genomic hybridization (CGH). From our results clonal chromosomal aberrations can be postulated which seem to be a feasible tool to differentiate PTPRs from other primary or secondary papillary tumors of this region.