Study for the Medical Council of Canada Qualifying Examination (MCCQE) I. Engage with flashcards and multiple-choice questions with detailed feedback. Prepare confidently!

Multiple Choice

Which CNS manifestation is a major Jones criterion?

Sydenham chorea is the CNS manifestation among the Jones criteria. It presents as sudden, involuntary, dance-like movements that can involve the face, tongue, and limbs, often with emotional lability and mild hypotonia. This CNS involvement occurs after a streptococcal infection and is one of the five major criteria used to diagnose acute rheumatic fever. The other major criteria are migratory polyarthritis (joints), carditis (heart), subcutaneous nodules (skin under the skin), and erythema marginatum (rash). None of these reflect central nervous system involvement, which is why Sydenham chorea uniquely represents the CNS major criterion.

Sydenham chorea is the CNS manifestation among the Jones criteria. It presents as sudden, involuntary, dance-like movements that can involve the face, tongue, and limbs, often with emotional lability and mild hypotonia. This CNS involvement occurs after a streptococcal infection and is one of the five major criteria used to diagnose acute rheumatic fever.

The other major criteria are migratory polyarthritis (joints), carditis (heart), subcutaneous nodules (skin under the skin), and erythema marginatum (rash). None of these reflect central nervous system involvement, which is why Sydenham chorea uniquely represents the CNS major criterion.