ArticleAsian journal of neurosurgery2023
Synchronous Posterior and Anterior Pituitary Tumors: A Case Report of a Hypothetic Paracrine Relationship.
Article in Asian journal of neurosurgery, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed.
- Case Report: Rare collision tumors: ACTH-secreting pituitary neuroendocrine tumor and pituicytoma - histopathological and ultrastructural analysis.Frontiers in endocrinology · 2026Article
- Oncocytic pituicytoma in a patient with Cushing's disease: a case report and narrative literature review.Frontiers in endocrinology · 2025Review
- Posterior transpetrosal approach to a suprasellar retroinfundibular pituicytoma: A case report and comprehensive literature review.Brain & spine · 2025Article
- Posterior pituitary tumors and other rare entities involving the pituitary gland.Brain pathology (Zurich, Switzerland) · 2025Review
- Treatment modalities and outcomes of granular cell tumors and spindle cell oncocytomas of the pituitary gland: an analysis of two national cancer databases.Acta neurochirurgica · 2024Article
- FROM 'NULL CELL ADENOMA' TO REFINED DIAGNOSIS: PITFALLS IN PITUITARY MASS EVALUATION.Acta endocrinologica (Bucharest, Romania : 2005)Article
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5 authors.
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Abstract
Tumors of the posterior pituitary are a distinct group of low-grade sellar neoplasms. Furthermore, the coexistence with an anterior pituitary tumor is extremely unlikely and could not be a mere coincidence and could be a paracrine relationship. Here, we present a case of 41-year-old woman with Cushing syndrome and two pituitary masses on magnetic resonance imaging. Histologic examination shows two distinct lesions. The first consisted of a pituitary adenoma with intense adrenocorticotropic hormone immunostaining and the second lesion consisted of a proliferation of pituicytes arranged in vague fascicles or pituicytoma. After a narrative review of the literature, we found that synchronous pituitary adenoma and a thyroid transcription factor 1 (TTF-1) pituitary tumor were only reported eight times in the past. These patients included two granular cell tumors and six pituicytomas and all of them coexisted with pituitary adenomas, seven functioning and one nonfunctioning. We analyze the hypothesis of a possible paracrine relationship for this concomitance, but this exceedingly rare situation is still a matter of debate. To the best of our knowledge, our case represents the ninth case of a TTF-1 pituitary tumor coexisting with a pituitary adenoma.
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