This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: AIIMS 2017, Subject name: Surgery
Most common presentation of abdominal desmoids tumor is? 
Select and explain. 
A. Abdominal pain, B. Abdominal mass, C. Fever, D. Urinary retention
B: Abdominal mass
Answer: B: Abdominal mass 
Explanation: Desmoid tumors: "Clinically, the most common areas of origin include the extremity, intraperitoneal, abdominal wall, and chest wall. Affected patients may present with a painful versus asymptomatic firm mass, bowel obstruction, or bowel ischemia." -Sabiston 20/e p765 "Patients with a desmoid tumor present with an asymptomatic mass or with symptoms related to mass effect from the tumor." -Sabiston 20/e p1073