This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disorders of the Hand, Subject name: Orthopaedics
Kanavel's sign is seen in 
Select and explain. 
A. Tenosynovitis, B. Trigger finger, C. Dupuytrens contracture, D. Carpal tunnel syndrome
A: Tenosynovitis
Answer: A: Tenosynovitis 
Explanation: Ans. is 'a' i.e. Tenosynovitis Kanavel's sign is seen in acute suppurative tenosynovitis of the little finger. It is tenderness elicited at a point in between the two palmar crease about 2.5 cm proximal to the base of the little finger.There are also 4 Cardinal signs of Kanavel seen in acute suppurative tenosynovitis of fingers. These are:finger held in slight flexion,fusiform swelling involving entire finger,tenderness along the flexor tendon sheath, andpain with passive extension of the digit.Tenosynovitis is inflammation of the tendon and tendon sheath.