There is moderate tumor on sorafenib PELVIS: The ill-defined infiltrating mass in the left hemipelvis is increased in size. The infiltrative character makes is difficult to accurate measure, though is at least 9.4 x 7.7 cm (series 601, image 17), previously 6.6 x 5.5 cm. The mass encases the left external iliac artery. The mass invades and occludes the left external iliac vein, with numerous collateral vessels identified. Anteriorly, the mass further invades and enlarges the left rectus muscle and adductor brevis. Laterally, the mass invades the left pelvic side wall, iliacus muscle, psoas muscle, and abuts the left acetabular cortex. Posteriorly, the mass extends into obturator internus muscle. Medially, the mass likely involves the left lateral bladder wall and adjacent loops of small intestine. The rectum appears uninvolved. UTERUS, ADNEXA: No significant abnormality noted.BLADDER: No significant abnormality noted.LYMPH NODES: No significant abnormality noted.BOWEL, MESENTERY: No significant abnormality noted.BONES, SOFT TISSUES: There is mildly increased left thigh soft tissue edema, reflecting venous congestion of the aforementioned left external iliac vein occlusion.
1. Increase in size and extent of the left pelvic desmoid tumor.2. Occlusion of the left external iliac vein, with venous collateral formation.