TY - JOUR T1 - Silent Corticotroph Pituitary Neuroendocrine Tumor: A Case Report AU - Şimşek Dilli, Merve AU - Acıbucu, Fettah AU - Aktaran, Zübeyde Şebnem AU - Küçük, Şekure Demet PY - 2026 DA - August Y2 - 2026 DO - 10.18678/dtfd.1899708 JF - Duzce Medical Journal JO - Duzce Med J PB - Duzce University WT - DergiPark SN - 1307-671X SP - 252 EP - 256 VL - 28 IS - 2 LA - en AB - Silent corticotroph pituitary neuroendocrine tumors are a rare subtype of non-functioning pituitary neuroendocrine tumors that lack the clinical and biochemical manifestations of Cushing disease. These tumors are associated with an aggressive clinical course because of a tendency for rapid progression and invasive growth, as well as a high recurrence rate. We present a 41-year-old woman without Cushingoid symptoms who presented with headache, bitemporal hemianopia, and diplopia. MRI revealed a mass extending into the suprasellar region, measuring approximately 2 × 4 cm, with internal necrotic areas and post-contrast enhancement. Following transsphenoidal resection, immunohistochemical staining demonstrated positivity for adrenocorticotropic hormone, confirming the diagnosis of a silent corticotroph pituitary neuroendocrine tumor. This case highlights the importance of recognizing silent corticotroph pituitary neuroendocrine tumors, the treatment approach, and long-term follow-up. KW - Pituitary neoplasms KW - cushing disease KW - adrenocorticotropic hormone CR - Ioachimescu AG, Eiland L, Chhabra VS, Mastrogianakis GM, Schniederjan MJ, Brat D, et al. Silent corticotroph adenomas: Emory University cohort and comparison with ACTH-negative nonfunctioning pituitary adenomas. Neurosurgery. 2012;71(2):296-303; discussion 304. doi:10.1227/NEU.0b013e318257c1f0. CR - Cooper O. Silent corticotroph adenomas. Pituitary. 2015;18(2):225-31. doi:10.1007/s11102-014-0624-3. 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