A 48-year-old man complains of stool 2-3 times a day, with a large amount of foul smelling feces, which is acconpanied by a pain in the umbilical region, hair loss, and paresthesias. Examination shows pale skin, ow body mass, and leg edema. Palpation of the umbilical region and intestine is painful. Blood test shows anemia; stool test shows steatorrhea, creatorrhea, amylorrhea. What syndrome can be observed in the patient?