Cerebellar OSCE Examination Quiz

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What is the best way to complete a cerebellar examination in an OSCE?

Close safely, summarise the findings and suggest a full neurological examination but no brain imaging unless the patient has papilloedema. Close safely, summarise the findings without sidedness and defer localisation until brain imaging has been reported. Close safely after normal finger-to-nose and heel-to-shin tests, since normal limb coordination excludes significant cerebellar disease. Close safely, state whether the signs are one-sided or bilateral, and suggest a full neurological examination with relevant tests and brain imaging. Close safely, state that the signs are bilateral and suggest drug levels as the main investigation, because toxins are the most common cause of cerebellar signs.

A Close safely, summarise the findings and suggest a full neurological examination but no brain imaging unless the patient has papilloedema.
B Close safely, summarise the findings without sidedness and defer localisation until brain imaging has been reported.
C Close safely after normal finger-to-nose and heel-to-shin tests, since normal limb coordination excludes significant cerebellar disease.
D Close safely, state whether the signs are one-sided or bilateral, and suggest a full neurological examination with relevant tests and brain imaging. ✓
E Close safely, state that the signs are bilateral and suggest drug levels as the main investigation, because toxins are the most common cause of cerebellar signs.

The answer is D: Close safely, state whether the signs are one-sided or bilateral, and suggest a full neurological examination with relevant tests and brain imaging.

Explanation

Why D is correct

See Completing the Examination. Option D is correct. A good close to a cerebellar examination is safe and professional: you thank the patient, make sure they are comfortable and steady, and wash your hands. You then summarise the findings and say whether the signs are on one side or both sides. This matters because a lesion on one side, such as a stroke or a tumour, causes limb signs on the same side, whereas signs on both sides point to a more diffuse cause. The cause of cerebellar signs can be a stroke, multiple sclerosis, a posterior fossa tumour (a growth in the space at the back of the skull that holds the cerebellum), chronic alcohol misuse, drug toxicity or an inherited condition. You would therefore suggest a full neurological examination, vestibular testing (tests of the balance organs of the inner ear), blood tests, drug or alcohol levels where appropriate, and an MRI scan of the brain.

Summary: state the findings and whether the signs are on one side or both sides.
Same-side rule: a cerebellar lesion on one side causes limb signs on the same side.
Further steps: suggest a full neurological examination, tests and an MRI scan of the brain.

Why the other options are incorrect

A. Close safely, summarise the findings and suggest a full neurological examination but no brain imaging unless the patient has papilloedema.: Brain imaging is part of the workup for cerebellar signs even without papilloedema, because the cause may be a stroke, posterior fossa tumour or multiple sclerosis.
B. Close safely, summarise the findings without sidedness and defer localisation until brain imaging has been reported.: Whether the signs are one-sided or bilateral is part of the bedside summary, because it helps localise the lesion and separate a focal cause from a more diffuse one. This should not wait until a scan has been reported.
C. Close safely after normal finger-to-nose and heel-to-shin tests, since normal limb coordination excludes significant cerebellar disease.: Normal limb coordination does not exclude all cerebellar disease. For example, a midline lesion can affect the trunk and gait while the limbs are normal.
E. Close safely, state that the signs are bilateral and suggest drug levels as the main investigation, because toxins are the most common cause of cerebellar signs.: Drug levels are not the main investigation for cerebellar signs, and whether the signs are bilateral must be established from the examination rather than assumed.

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More questions from this set. Start the quiz to answer them and see each explanation.

1
During a cerebellar OSCE examination, which instruction best assesses dysdiadochokinesia in the hands?
2
A 24-year-old woman is assessed for possible cerebellar disease. She has sustained horizontal nystagmus on rightward gaze and jerky smooth pursuit. On finger-to-nose testing her right hand repeatedly overshoots the target, while her left hand is accurate. Which interpretation best fits these findings?

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