This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Unknown
De Quervains disease is tenosynovitis of: 
Select and explain. 
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
B: Abductor pollicis longus and extensor pollicis brevis
Answer: B: Abductor pollicis longus and extensor pollicis brevis 
Explanation: Ref. Textbook of Orthopedics, Ebnezar. Page. 378.
 
De Quervains TenoSynovitis

A stenosing tenosynovial inflammation of the 1st dorsal compartment which includes
	
abductor pollicis longus (APL) 
extensor pollicis brevis (EPB) 


Epidemiology
	
Woman > men
30 - 50 years old
Most commonly in the dominant wrist


Pathophysiology
	
Thickening and swelling of extensor retinaculum causes increased tendon friction
NOT considered an inflammatory process


Prognosis
	
Most cases resolve with non-operative management
 High recurrence rate