ArticleJournal of neurosurgery. Case lessons2024
Intraventricular pituicytoma: illustrative case.
Article in Journal of neurosurgery. Case lessons, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- A third ventricular floor-associated TTF-1-positive posterior pituitary tumor: illustrative case.Journal of neurosurgery. Case lessons · 2026Article
- Pituicytoma in the third ventricle suggesting a third ventricular floor origin: illustrative case.Journal of neurosurgery. Case lessons · 2026Article
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14 authors.
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Abstract
backgroundPituicytoma is a rare glial neoplasm from pituicytes of the neurohypophysis or infundibulum. It occurs in the sella and suprasellar area, and it is extremely uncommon to observe intraventricular pituicytoma without affecting the infundibulum or infundibular recess. OBSERVATIONS: A 69-year-old man had suffered progressive dementia for 6 months. Magnetic resonance imaging revealed a solid, homogeneously enhancing mass with flow voids within the anterior third ventricle. The sella, suprasellar area, infundibulum, and infundibular recess were unaffected. The patient underwent a transcallosal transchoroidal approach, which ended in partial removal of the tumor due to significant tumoral bleeding. A second surgery resulted in its subtotal removal. The tumor had bipolar cells, and their nuclei were immunoreactive for thyroid transcription factor-1. A DNA methylation analysis corresponded to the methylation class of pituicytoma, granular cell tumor, and spindle cell oncocytoma. Pituicytoma was the diagnosis based on these results. A systematic review identified 5 intraventricular pituicytoma cases. LESSONS: Intraventricular pituicytoma can grow without involvement of the infundibulum or infundibular recess. The current case suggests that pituicytes of the hypothalamic tuber cinereum can also give rise to pituicytoma. Because of the hypervascular nature of intraventricular pituicytomas, it is imperative to control intraoperative bleeding with attention to the adjacent hypothalamus. https://thejns.org/doi/10.3171/CASE24247.
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