Haruo Yoshida, Fujinobu Tanaka, Kenji So, Yoshihiko Kumai
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引用次数: 0
Abstract
Introduction: Ocular imaging strategies have evolved to facilitate the diagnosis of optic neuropathy. This study aimed to evaluate the pathogenesis of visual disturbance associated with paranasal mucocele via magnetic resonance imaging (MRI).
Methods: A total of 19 patients with mucocele and visual disturbance who underwent endoscopic sinus surgery, orbital MRI, and sinus computed tomography were included. The age, sex, days from onset to surgery, eye pain, and imaging findings were analyzed. The results were compared between two groups: 7 patients with preoperative visual acuity worse than 20/200 (the poor group) and 12 patients with equal or better than 20/200 (the fair group).
Results: Imaging showed a high compression rate of the orbit in 17 (89.5%) and enlargement of the subarachnoid space around the optic nerve in 15 (78.9%) of 19 patients. Preoperative vision was significantly poor in cases with hyperintense regions in the optic nerve on T2-weighted imaging, indicating the presence of optic neuritis. No cases showed severe inflammation of the cyst or the presence of intraorbital fat tissue.
Conclusion: MRI-based diagnosis proved useful in evaluating pathological factors, such as orbital compression, ischemia, and optic neuritis, in individual cases. It can help in gaining insight into the pathogenesis and developing appropriate treatment strategies for visual disturbances associated with paranasal mucocele.
期刊介绍:
''ORL'' contains concise, original scientific papers of interest for both clinicians and researchers in oto-rhino-laryngology and head and neck surgery. Contributions drawn from the basic sciences cover new knowledge on the anatomy, pathology, pathophysiology, immunology and tumor biology of head and neck and the auditory and vestibular system, the salivary glands, paranasal sinuses and of the organs of the upper respiratory and digestive tract. The practical value of the journal is accentuated by reports of clinical progress in diagnosis and therapy.