Figure 4b. Lipoma of the spermatic cord. (a) US image demonstrates an echogenic solid mass (M) superior to the left testicle. (b) CT scan demonstrates the mass (M) with fat attenuation in the left inguinal canal. (c) T1-weighted MR image obtained in a different patient demonstrates a mass (M) in the right inguinal canal. The mass has increased signal intensity, a finding that is compatible with fat.