Pestieau et al identified several findings on CT scans which can be used to determine if a patient with an abdominal or pelvic sarcoma is likely to benefit from reoperation. The authors are from the Washington Cancer Institute in Washington, DC.
The authors evaluated patients using CT scans and the Peritoneal Cancer Index (PCI, above).
Regions with worse prognosis with tumor masses > 5 cm or confluent:
(1) left lower quadrant
(2) pelvis
(3) distal ileum
Findings indicating better prognosis:
(1) involvement of <= 5 abdominopelvic regions (out of the 12 used in the Peritoneal Cancer Index) with tumor > 5 cm or confluent
(2) Peritoneal Cancer Index <= 15
Tumor >= 5 cm or Confluent in Pelvis
Tumor >= 0.5 cm on 2-4 Small Bowel Segments
No evidence of Disease
Evidence of Disease
No
NA
86%
27%
Yes
No
20%
80%
Yes
Yes
0%
100%
where:
• evidence of disease = alive with disease or died of disease
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