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Indian Journal of Medical and Paediatric Oncology
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PRACTITIONER SECTION
Year : 2020  |  Volume : 41  |  Issue : 3  |  Page : 412-414

Papillary tumor of the pineal region: A case with unique immunohistochemical keratin expression pattern


1 Department of Pathology, G B Pant Institute of Postgraduate Medical Education and Research, New Delhi, India
2 Department of Neurosurgery, G B Pant Institute of Postgraduate Medical Education and Research, New Delhi, India
3 Department of Pathology, All India Institute of Medical Sciences, New Delhi, India

Correspondence Address:
Dr. Rakesh Kumar Gupta
Department of Pathology, G B Pant Institute of Post Graduate Medical Education and Research, Jawahar Lal Nehru Marg, New Delhi - 110 002
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijmpo.ijmpo_191_18

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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.


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