Journals / Turkish Neurosurgery / 2012 / Cilt: 22 - Sayı: 1

Kemikleşmekte olan hipofiz adenomu ile birlikte görülen astrositoma ve hipofiz adenomu ile ilişkili gangliositoma: Alışılmadık iki koşul

Ossifying pituitary adenoma co-existing with astrocytoma and pituitary adenoma associated with gangliocytoma: Two unusual conditions

Pages
127–133
Publication Date
2022-11-05
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Based on these findings, a diagnosis of gangliocytoma associated with pituitary adenoma was considered.

📌 3 Key Takeaways

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Objective & Hypothesis:Bone formation in pituitary adenoma is an extremely rare finding.
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Key Findings & Data:Our second case concerns a 25-year-old male patient who presented with complains of off and on headache for 12 months.
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Conclusion & Impact:Based on these findings, a diagnosis of gangliocytoma associated with pituitary adenoma was considered.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Bone formation in pituitary adenoma is an extremely rare finding. Only five previous cases have been published. This is the sixth case report of an ossifying pituitary adenoma and the first case report of a pituitary adenoma with bone formation coexisting with WHO grade II astrocytoma. MRI imaging revealed an unusual eggshell cap-like calcified structure surrounding the tumor. Histologically, the adenoma contained irregularly anastomosing trabeculae with well-formed lacunae and osteoblasts along the margins. Our second case concerns a 25-year-old male patient who presented with complains of off and on headache for 12 months. MRI (head) revealed a 4x3cm well defined rounded lesion in the sella and suprasellar extension that was isointense in T1, hyperintense on T2 with cystic areas and homogenous contrast enhancement. On morphological examination, a cellular tumor admixed with foci of large ganglion cells embedded in a neuropil stroma was noted. On immunohistochemistry, tumor cells were focally positive for pancytokeratin, growth hormone and synaptophysin; and ganglion cells were positive for neurofilament and synaptophysin. No GFAP positive cells were seen. The Ki67 index was < 1%. Based on these findings, a diagnosis of gangliocytoma associated with pituitary adenoma was considered.

Özet

Hipofiz adenomlarında kemik oluşumu oldukça nadir görülen bir bulgudur. Toplam 5 hipofiz adenomu olgusunda kemikleşme oluşumu rapor edilmiştir. Sunulan ilk vaka kemikleşme gösteren hipofiz adenomu olması yanı sıra gonadotropin üreten bir hipofiz adenomu ve grade 2 astrositom ile birlikteliği ile bu özellikteki ilk olgu sunumudur. Manyetik rezonans görüntülemede; kemik dokusunun hipofiz adenomunun etrafını yumurta kabuğu gibi sardığı görüldü. Histolojik olarak adenomanın düzensiz bir şekilde birbiri ile ilişkili trabeküler yapılar yanı sıra; iyi gelişmiş lakünler ve osteoblastları da içerdiği görüldü. Diğer vaka ise 25 yaşında erkek hasta 1 yıldan bu yana ara sıra olan başağrıları nedeni ile çekilen manyetik görüntülemesinde sella ve parasellar bölgede 4x 3 cm'lik iyi sınırlı, oval görünümlü ve T1 kesitlerde isointens, T2 kesitlerde hiperintens görünümün yanı sıra kistik alanlar ve homojen kontrast tutulumu izlendi. Morfolojik incelemede, nöropil doku içerisinde ganglion hücre odakları görüldü. İmmunohistokimya çalışmasında tümör hücrelerinin pansitokeratin, büyüme hormonu ve sinaptofizin ile fokal olarak pozitif reaksiyon verdiği görüldü. Ganglion hücreleri nörofilament ve sinaptofizinle pozitif reaksiyon verdi. GFAP ile tutulum görülmedi. Ki 67 indeksi yüzde 1'in altında idi. Bu bulguların ışığında gangliositoma ile ilişkili hipofiz adenomu olgusu tanısı konulmuştur.

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Cite This Article

BEHARI, S., JAISWAL, S., JAISWAL, A. K., CHAND, G., KUMARJAIN, V., VIJ, M. (2022). Kemikleşmekte olan hipofiz adenomu ile birlikte görülen astrositoma ve hipofiz adenomu ile ilişkili gangliositoma: Alışılmadık iki koşul. Turkish Neurosurgery, Cilt: 22 - Sayı: 1, 127–133. https://ajindex.com/articles/617025

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