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Stellate block — FRCA Primary MCQ

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EasyAnatomyStellate blockFRCA Primary

Horner syndrome follows a sympathetic block for upper limb pain. Which anatomical structure is described?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: E — Cervicothoracic sympathetic ganglion

The stellate ganglion is the cervicothoracic sympathetic ganglion. Femoral nerve is less appropriate because it would fit a different clinical clue or a separate anaesthetic problem. Pleural dome near subclavian vein is less appropriate because it would fit a different clinical clue or a separate anaesthetic problem. C3 to C5 roots is less appropriate because it would fit a different clinical clue or a separate anaesthetic problem. Inferior border of the rib is less appropriate because it would fit a different clinical clue or a separate anaesthetic problem. In Primary FRCA anatomy, the tested structure should explain the block, airway sign or regional complication in the stem.

Reference: Ellis, Feldman & Harrop Anatomy for Anaesthetists; Primary FRCA textbooks