atypical
Unusual Presentation
Plain-language definition
Not following the usual or expected pattern. Atypical features in optic neuritis (e.g., bilateral, no pain, severe loss) prompt testing for NMO or MOGAD.
Where this term comes up
“Treatment often uses topical corticosteroids with cycloplegic drops, but infectious causes require antimicrobial coverage; lab workup is targeted, especially for recurrent, bilateral, granulomatous, or atypical disease”
Condition · Anterior Uveitis (Iritis)
“NMO/MOG panel if atypical features”
Test · Autoantibody Testing Panels
“Has activity against selected atypical organisms, which is why it may be used for infections such as chlamydial conjunctivitis”
Medication · Doxycycline
- Category
- Clinical term
- Also written as
- No alternate forms listed.
Clinical terms are words clinicians use to describe symptoms, signs, risk factors, or patterns seen during evaluation.
Related glossary terms
- MRI
Magnetic Resonance Imaging
- OCT
Optical Coherence Tomography
- ESR
Erythrocyte Sedimentation Rate
- fundus
Back of the Eye
- immunosuppressive
Immune System Suppression
- bilaterally
On Both Sides
A note on medical context
A glossary definition can explain a word, but it cannot tell you whether a symptom or test result is serious. If this term came from an article, use the full article and your clinician's guidance for context.