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CC BY-NC-ND 4.0 · Indian J Med Paediatr Oncol 2020; 41(03): 412-414
DOI: 10.4103/ijmpo.ijmpo_191_18
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Papillary Tumor of the Pineal Region: A Case with Unique Immunohistochemical Keratin Expression Pattern

Rakesh Kumar Gupta
Department of Pathology, G B Pant Institute of Postgraduate Medical Education and Research, New Delhi, India
,
Vineeta Vijay Batra
Department of Pathology, G B Pant Institute of Postgraduate Medical Education and Research, New Delhi, India
,
Arvind Kumar Srivastava
Department of Neurosurgery, G B Pant Institute of Postgraduate Medical Education and Research, New Delhi, India
,
Mehar Chand Sharma
Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
› Author Affiliations Financial support and sponsorship Nil.
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Abstract

Papillary tumor of the pineal region (PTPR) is a rare neuroepithelial tumor first described in 2003. It is a newly recognized entity and introduced in the WHO classification of central nervous system tumors in 2007. Till date, about 70 cases have been described in literature. Herein, we report an additional case of PTPR in a 25-year-old male with emphasis on immunohistochemistry and ultrastructural features. Interestingly, this case showed a unique membranous as well as dot-like Golgi zone keratin (AE1/AE3 and CK18) expression pattern.

Keywords

Immunohistochemistry - keratin - papillary tumor - pineal - ultrastructure


Publication History

Received: 31 August 2018

Accepted: 29 September 2019

Article published online:
28 June 2021

© 2020. Indian Society of Medical and Paediatric Oncology. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/.)

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