This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Medicine
Superior sulcus tumor of the lungs characteristically present With 
Select and explain. 
A. Home syndrome, B. Breathlessness, C. Hemoptysis, D. Pancoast syndrome
D: Pancoast syndrome
Answer: D: Pancoast syndrome 
Explanation: Pancoast (or superior sulcus tumor) syndromes result from local extension of a tumor growing in the apex of the lung with involvement of the eighth cervical and first and second thoracic nerves, and present with shoulder pain that characteristically radiates in the ulnar distibution of the arm,often with radiological distribution of first and second ribs.Often pancoast syndrome and Horner's syndrome coexists. Ref:Harrison's med:18th edition,page no:510.