Bookmark and Share
Click 73-year-old female with recurrent retroperitoneal liposarcoma. Axial staging CT image obtained in portal venous phase (GE Lightspeed Pro 32, 1.25mm slice thickness, 120kVp, 200mAs) with intravenous contrast (100ml Omnipaque 300) demonstrates a large heterogeneous mass composed of soft tissue and fat.

Click 73-year-old female with recurrent retroperitoneal liposarcoma presenting with vomiting following a recent episode of bowel obstruction due to tumour compression of the duodenum which was treated with endoscopic stenting. Axial CT images in the portal venous phase (GE Lightspeed Pro 32, 1.25mm slice thickness, 120kVp, 200mAs) with intravenous contrast (100ml Omnipaque 300) demonstrate multiloculated gas within the anterior component of the mass.

Click 73-year-old female with recurrent retroperitoneal liposarcoma presenting with vomiting following a recent episode of bowel obstruction due to tumour compression of the duodenum which was treated with endoscopic stenting. Sagittal CT images in the portal venous phase (GE Lightspeed Pro 32, 1.25mm slice thickness, 120kVp, 200mAs) with intravenous contrast (100ml Omnipaque 300) demonstrate multiloculated gas within the anterior component of the mass. The previous duodenal stent is visualised with an associated duodenal fistula.

Click 37-year-old female with metastatic synovial sarcoma presenting with vomiting and anorexia. Coronal CT of the chest, abdomen and pelvis obtained in portal venous phase (GE Lightspeed Pro 32, 1.25mm slice thickness, 120kVp, 200mAs) with intravenous contrast (100ml Omnipaque 300) demonstrates a retroperitoneal mass invading into and fistulating with the second part of the duodenum (white arrow), containing locules of air (red arrow).

Click 37-year-old female with metastatic synovial sarcoma presenting with vomiting and anorexia. Axial CT in portal venous phase (GE Lightspeed Pro 32, 1.25mm slice thickness, 120kVp, 200mAs) with intravenous contrast (100ml Omnipaque 300) demonstrating a retroperitoneal mass with multiple locules of air suggesting fistulation with the adjacent duodenum.

Click 71 year-old-man with gastrointestinal stromal tumour (GIST) of the oesophagus and stomach presenting with abdominal pain and distension, and a haemoserous discharging sinus on the anterior abdominal wall. Axial CT with contrast (Ultravist 300) in the portal venous phase (Siemens sensations 63, 1.5mm slice thickness, 120mVp, 200mAs) demonstrates an exophytic mass arising from the greater curve of the stomach and containing locules of air, suggesting a communication with the lumen of the stomach. There is also a fistulous connection between the skin, the tumour and the upper gastrointestinal tract. This is better seen on curved planar reformatted axial CT images (Figure 4b) which shows an 8cm fistula tract.

Click 71 year-old-man with gastrointestinal stromal tumour (GIST) of the oesophagus and stomach complicated by a fistula between the skin surface and upper gastrointestinal tract. Post-radiotherapy axial CT with contrast (Ultravist 300) in the portal venous phase (Siemens sensations 63, 1.5mm slice thickness, 120mVp, 200mAs) demonstrates resolution of the fistula tract and decrease in the size of the soft-tissue mass associated with the stomach. Absence of intra-lesional free gas also suggests resolution of the fistula.