Arachnoid cyst in oculomotor cistern

• Published in: Korean journal of radiology Vol. 14; no. 5; pp. 829 - 831
• Main Authors: Kim, Min-Kyun, Choi, Hyun Seok, Jeun, Sin-Soo, Jung, So-Lyung, Ahn, Kook-Jin, Kim, Bum-soo
• Format: Journal Article
• Language: English
• Published: Korea (South) The Korean Society of Radiology 01.09.2013; 대한영상의학회
• Subjects: Adult; Arachnoid Cysts - diagnosis; Arachnoid Cysts - surgery; Case reports; Cysts; Disease; Female; Follow-Up Studies; Hemangioma; Hospitals; Humans; Magnetic Resonance Imaging; Medical schools; Medicine; Neuroimaging and Head & Neck; Neurological disorders; Neurosurgery; Neurosurgical Procedures; Oculomotor Nerve - pathology; Oculomotor Nerve Diseases - diagnosis; Oculomotor Nerve Diseases - surgery; Optic nerve; Sinuses; 방사선과학; Arachnoid cyst; Oculomotor nerve cistern; Oculomotor nerve
• ISSN: 1229-6929; 2005-8330
• DOI: 10.3348/kjr.2013.14.5.829

Oculomotor cistern is normal anatomic structure that is like an arachnoid-lined cerebrospinal fluid-filled sleeve, containing oculomotor nerve. We report a case of arachnoid cyst in oculomotor cistern, manifesting as oculomotor nerve palsy. The oblique sagittal MRI, parallel to the oculomotor nerve, showed well-defined and enlarged subarachnoid spaces along the course of oculomotor nerve. Simple fenestration was done with immediate regression of symptom. When a disease develops in oculomotor cistern, precise evaluation with proper MRI sequence should be performed to rule out tumorous condition and prevent injury of the oculomotor nerve.