File:Arachnoid cyst- extremely large (Radiopaedia 68741-78451 Axial T1 5).jpg

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Description	Radiopaedia case ID: 68741 Image ID: 49345952 Image stack position: 5/75 Plane projection: Axial Aux modality: T1 Study findings: Huge right frontotemporal arachnoid cyst causing a mass effect very mild for its size, including narrowing of the right lateral ventricle and a relatively mild subfalcine herniation. Modality: MRI System: Central Nervous System Findings: Complete opacification of sphenoid sinus on left, mucosal thickening on right. Tiny focal polypoid muosal thickening in floor of left maxillary sinus.Adenoidal hypertrophy with moderate narrowing of nasopharynx and pharyngeal tonsillar hypertrophy with severe narrowing of oropharynx (not shown in entirety).Thickened nasal conchae, left concha bullosa. Large fluid-density right frontotemporal structure, probably a huge arachnoid cyst. NB: The study was uploaded with a higher contrast than the original "sinus" (i.e. "internal acoustic canal") window to better display the intracranial structure.
Date	Published: 11th Jun 2019
Source	https://radiopaedia.org/cases/arachnoid-cyst-extremely-large
Author	Yair Glick
Permission (Permission-reusing-text)	http://creativecommons.org/licenses/by-nc-sa/3.0/

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current	09:22, 23 May 2021		860 × 1,060 (40 KB)	Fæ (talk \| contribs)	Radiopaedia project rID:68741 (batch #2817-5 A5)

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File change date and time	22:18, 11 June 2019