Intraventricular pituicytoma: illustrative case.

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.