Table 1 Review areas for unfavourable sites [44] (published with permission from clinical radiology)
U1* sites | U2** sites |
|---|---|
Disease in the epigastric region | Biliary obstruction due to tumour |
Lesser omentum/lesser sac/around the left lobe of liver/fissures/falciform ligament/ligamentum teres/encasement of left gastric artery | |
Porta hepatis/porto-caval space/gallbladder fossa/near hepatic vein or IVC | Coeliac, periportal, epiphrenic and retroperitoneal nodes |
Spleen | |
Stomach encasement | Root of mesentery/ligament of treitz |
Peri-pancreatic and para-duodenal space | |
Disease in the retroperitoneum | DJ flexure, most of the proximal small bowel involved, small bowel obstruction, stellate mesentery |
Hydronephrosis and ureteric involvement | |
Psoas, iliacus and quadratus lumborum muscles | |
Pelvis | Pelvic side wall disease/nodes |
Bladder trigone | |
Seminal vesicle, prostate | |
Disease encasing the external iliac vessels | Disease involving the sacrum |