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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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de Quervain's disease classically affects the:
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The correct answer is  de QUERVAIN'S DISEASE The abductor pollicis longus and extensor pollicis brevis tendons may become inflamed Pathognomic sign is Finkelstein's test The examiner places patients' thumb across the palm in full flexion, and then holding the patient's hand firmly, turns the wrist sharply into adduction In positive test this is acutely painful Repeating the movement with the thumb left free is relatively painless.