ABPath Neuropathology
PituitaryEnglish
Exam overviewPractice session
A 45-year-old presents with a sellar mass. Biopsy shows a monotonous, chromophobic pituitary tumor. IHC shows prominent cytoplasmic staining for the transcription factor PIT1 and positive GH/prolactin. Which lineage per WHO 2022 PitNET classification does this represent?
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