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  • Title: Intratumoral Rathke's Cleft Cyst Remnants Within Craniopharyngioma, Pituitary Adenoma, Suprasellar Dermoid, and Epidermoid Cysts: A Ubiquitous Signature of Ectodermal Lineage or a Transitional Entity?
    Author: Manjila S, Asmar NE, Vidalis BM, Alonso F, Singh G, Vadamalai K, Cohen ML, Bambakidis NC, Arafah BM, Selman WR.
    Journal: Neurosurgery; 2019 Aug 01; 85(2):180-188. PubMed ID: 30010935.
    Abstract:
    BACKGROUND: The authors present cystic epithelial masses in the suprasellar region which on histopathology revealed 4 mixed tumors having simple cuboidal epithelium of Rathke's Cleft Cyst (RCC) elements trapped within pituitary adenoma, epidermoid cyst, dermoid cyst, and papillary craniopharyngioma respectively. OBJECTIVE: To highlight the developmental theory of ectodermal continuum in the realm of suprasellar epithelial cystic lesions and examines the cardinal aspects that distinguish RCC from its confounder, ciliary craniopharyngioma. METHODS: The authors performed a medical chart review on 4 patients who had coexisting RCC with craniopharyngioma, pituitary adenoma, suprasellar dermoid, and epidermoid cysts. RESULTS: This series of unique suprasellar lesions elucidate the spectrum of cases from Rathke's cyst to other suprasellar epithelial cysts including a recently identified clinical entity called ciliary craniopharyngioma, which authors feel is a misnomer. The authors also report the first case of ruptured dermoid cyst admixed with elements of Rathke's cyst elements and xanthogranuloma in neurosurgical literature. CONCLUSION: We propose that the new entity of ciliary craniopharyngioma could be just another variant of RCC elements nested within a typical papillary or adamantinomatous lesion. Further study is warranted to understand the implications of natural history with tumors containing RCC elements.
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