Foster Kennedy Syndrome — SCE Neurology MCQ

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ModerateNeuro-ophthalmologyFoster Kennedy SyndromeSCE Neurology

A 55-year-old man with a history of frontal meningioma resection presents with anosmia. On examination, he has optic disc atrophy on the ipsilateral (left) side and papilloedema on the contralateral (right) side. What is this clinical sign called?

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Correct answer: E — Foster Kennedy syndrome

Foster Kennedy syndrome consists of ipsilateral optic atrophy (from direct optic nerve compression by a frontal/olfactory groove mass) and contralateral papilloedema (from raised intracranial pressure). Ipsilateral anosmia from olfactory nerve compression completes the triad. It is classically associated with olfactory groove or medial sphenoid wing meningiomas. Pseudo-Foster Kennedy syndrome (bilateral sequential AION) should be distinguished. B: Marcus Gunn pupil is an RAPD. C: Horner syndrome involves miosis and ptosis. D: Parinaud syndrome involves upgaze palsy and convergence-retraction nystagmus. E: Argyll Robertson pupil accommodates but does not react to light.

Reference: ABN Neuro-ophthalmology Guidelines; Clinical Neuroanatomy