hi borislav,
i urge you to get a second opinion as i did years ago when my gastroenteroligist proposed to me the possibility of needing a whipple.
today my duodenom looks like someone did surgery on me, its clean of polyps and the surgeon i saw for a second opinion said he makes a living from surgeries and has children going through college, i did not require a whipple surgery and im now almost 45 years old
i have fap also and just because you have fap does not mean you need you duodenum removed and part of pancreas and part of stomach
i'll be getting a 2nd opinion after my gi of 20 years has threatened i may face a partial gastrectomy following low grade dysplasia polyps found 1.6 cm and 2.3 centimeters
dont be afraid, ask questions, its a major operation and just because you have fap does not mean you need a whipple surgery
good luck
len