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: Surgery
All are seen in Thoracic outlet syndrome except - 
Select and explain. 
A. Mass in the Neck, B. Wasting of forearm muscles, C. Adson's test positive, D. Pallor
B: Wasting of forearm muscles
Answer: B: Wasting of forearm muscles 
Explanation: Muscles of hand are wasted, not the forearm muscles.
• Ulnar nerve (C8-T1) involvement is most common.
• It is associated with:
−− Motor weakness and atrophy of the hypothenar and interosseous muscles
−− Pain and paresthesia along the medial aspect of the arm, hand, 5th finger and medial aspect of 4th finger.