Figure 10a. Liposarcoma. (a, b) T1-weighted (a) and T2-weighted (b) MR images of the scrotum demonstrate a large mass (M) that represents recurrent scrotal liposarcoma. The mass has low to intermediate signal intensity on the T1-weighted image and increased signal intensity on the T2-weighted image. Some increased signal intensity is noted within the mass on the T1-weighted image (arrow), a finding that is consistent with fat. The scrotal wall and testicle are not involved. (c) Photograph of the gross specimen shows a yellow-tan, glistening, well-circumscribed tumor that arises from the spermatic cord (arrow). Scale is in centimeters.