A submucosal lipoma can cause abdominal pain, intestinal obstruction, intussusception, or hemorrhage, whereas subserosal lipoma may present as abdominal mass.

• 黏膜下脂肪瘤可以导致腹痛、肠阻塞、肠套疉、及肠道出血，而浆膜下脂肪瘤则可以腹部肿块表现。