Female 20 years old Reason: Desmoid tumor on chemotherapy; assess response to therapy PELVIS: The large infiltrating pelvic desmoid tumor appears similar in size and extent compared to the prior examination. The reference region of the mass now measures 9.8 x 7.6 cm (series 19/85), previously measuring 9.6 x 7.3 cm, when applying a similar measuring technique. Muscular invasion into the left rectus abdominis, left abductor musculature and left iliopsoas muscle appears similar to the prior exam. The mass encases the left external iliac artery and vein, with persistent occlusion of the left external iliac vein, and extensive collateral formation. The left leg remains edematous, and T2 signal extends inferiorly from the from the mass into the muscular compartment to the level of the mid thigh, consistent with venolymphatic obstruction.UTERUS, ADNEXA: Trace free fluid within the pelvis is likely physiologic.BLADDER: The urinary bladder is displaced to the right. LYMPH NODES: Multiple prominent left inguinal lymph nodes are again noted. BOWEL, MESENTERY: No significant abnormality noted. BONES, SOFT TISSUES: The bone marrow signal is normal and there is no definite evidence of osseous involvement.
Stable size of the left pelvic desmoid tumor with associated muscular invasion and venolymphatic obstruction resulting in swelling of the left lower extremity.