Unknown De Quervains disease is tenosynovitis of: A Abductor pollicis brevis and extensor pollicis longus B Abductor pollicis longus and extensor pollicis brevis C Abductor pollicis longus and extensor carpi radialis brevis D Abductor pollicis brevis and extensor carpi radialis longus 💡 Explanation De Quervains disease is tenosynovitis of: ✓ Correct Answer: B. Abductor pollicis longus and extensor pollicis brevis