A previously healthy 59-year-old female presented with weakness in the lower extremities and abdominal distension of one month. She also experienced unintentional weight loss of 20 pounds within 3months. The physical examination was remarkable for the presence of two well-circumscribed reddish nodules over the umbilicus (Fig. 1, panel A), marked abdominal distension, and motor power of 1/5 in both legs. Computed tomography (CT) findings are shown in Fig. 1, panel B&C.