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
The prognosis of rhabdomyosarcoma is likely to be poor if the site of the tumor is ? 
Select and explain. 
A. Orbit, B. Paratesticular, C. Extremity, D. Urinary bladder
C: Extremity
Answer: C: Extremity 
Explanation: Ans. is 'c' i.e. Extremity Rhabdomyosarcomas of the extremities have alveolar histology which is associated with aggressive tumor biology. Also know RMS is the most common malignant tumor of the soft tissues in infants and children. MC site is head & neck region Among head & neck, orbit is the most common site.