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Pituitary neuroendocrine tumour (PitNET)/adenoma classification is based on cell lineage and requires immunopositivity for adenohypophysial hormones and/or transcription factors (TFs) steroidogenic factor 1 (SF1), T‐box transcription factor TBX19 (TPIT) or… Click to show full abstract
Pituitary neuroendocrine tumour (PitNET)/adenoma classification is based on cell lineage and requires immunopositivity for adenohypophysial hormones and/or transcription factors (TFs) steroidogenic factor 1 (SF1), T‐box transcription factor TBX19 (TPIT) or pituitary‐specific positive transcription factor 1 (PIT1). PitNET/adenomas lacking lineage affiliation are termed ‘null cell’ tumours (NCTs). NCT diagnosis may be afflicted by methodological limitations and inconsistent diagnostic approaches. Previous studies have questioned the existence of true NCTs. In this study, we explore the epigenomic identities of PitNET/adenomas lacking clear TF immunopositivity.
Journal Title: Neuropathology and Applied Neurobiology
Year Published: 2022
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