Localized Subcutaneous Insulin-Derived Amyloidosis Excised after Evaluation Using Ultrasonography in a Patient with Type 2 Diabetes Mellitus

Figure 2

Contrast-enhanced CT of the abdomen (equilibrium phase): in the left and right subumbilical regions, subcutaneous masses with irregular margins are observed, each measuring approximately 60 mm. The density is heterogeneous and higher than that of the surrounding adipose tissue, without contrast-enhancement effect (indicated by arrows).