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Updated: Aug 22, 2025

Generation and Quantitative Characterization of Functional and Polarized Biliary Epithelial Cysts
Published on: May 16, 2020
Colloid cyst with hyphal-like structures: A rarity that mimics actinomycosis of athe third ventricle
Abstract:
Colloid cysts are histologically well defined and consist of three main components, a capsule, with an underlying epithelial layer, and a mucinous heart. In our case, we present a 35-year-old female with acute deterioration of level of consciousness. An emergent CT scan showed a cystic lesion occluding the intraventricular foramen. The lesion was endoscopically excised through a transfrontal approach. Microscopic examination of the resected specimen revealed hyphal-like structures (HLS). This rare finding was first described by Dodds and Powers in 1977 and, in its microscopic nature, it mimics actinomyces of the third ventricle.
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