Współczesna Onkologia

Abstract

3/2018 vol. 22
Case report

A malignant astrocytoma with uncommon angiocentric features and dot-like EMA expression

Contemp Oncol (Pozn) 2018; 22 (3): 205-208
Online publish date: 2018/09/30
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Angiocentric features are uncommon in high-grade World Health Organisation (WHO) brain tumours, whilst they are typical for WHO grade I tumours, e.g. angiocentric gliomas. We present an unusual glial tumour that occurred in a 59-year-old man. The tumour had equivocal radiologic and histopathologic features, especially a characteristic angiocentric pattern, low-to-moderate Ki67, and dot-like epithelial membrane antigen expression. The tumour did not show features characteristic for glioblastoma; however, it recurred as glioblastoma four months later. Based on this case, we show that high-grade WHO brain tumours may show an angiocentric pattern typical for low-grade WHO brain tumours, such as angiocentric gliomas.
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