TTF1 and granular cell tumor: Immunohistochemistry showed positivity for TTF-1, S100, and CD68, with a Ki-67 index of approximately 5%, while SOX10 was negative, supporting the diagnosis of neurohypophyseal GCT.<h4>Literature review</h4>We reviewed 88 published case reports to compare demographic characteristics, clinical presentations, endocrine abnormalities, treatment strategies, and recurrence rates.<h4>Conclusion</h4>Neurohypophyseal GCT should be included in the differential diagnosis of solid sellar/suprasellar masses associated with the pituitary stalk.