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Case No. 736
2025-11-01~2025-11-30
출제자 : 원소연
Hit : 444
| Period | 2025-11-01~2025-11-30 |
|---|---|
| Diagnosis | Ethambutol-induced optic neuropathy |
| Gender |
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| Age | 78 |
| Clinical information | 78/M C.C: Visual decline Duration: 1month PHx: NTM (Non-tuberculous mycobacteria) |
| Discussion | Ethambutol is one of the first-line drugs for the treatment of tuberculosis One of the major adverse effects of ethambutol toxicity is optic neuropathy Orbit MRI: Symmetric T2/FLAIR hyperintensity of optic chiasm and optic tracts FLAIR hyperintensity on MRI in the posterior optic pathway is characteristic. Relative sparing of the optic nerves Reference: Neuroimaging in ethambutol induced optic neuropathy: MRI in time can save the vision. Imaging of the optic chiasm and retrochiasmal visual pathyways |
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