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In the Industry Vocabulary Test
R0 resection
Pronunciation: R-zero resection
Complete surgical removal of tumor with microscopically negative margins.
Full Definition
A complete surgical resection where no residual tumor remains and all margins are microscopically negative for cancer cells. This represents the optimal surgical outcome in gastrointestinal oncology, as it provides the best chance for cure. The classification includes R0 (no residual tumor), R1 (microscopic residual), and R2 (macroscopic residual). Achieving R0 resection is a critical prognostic factor and often determines subsequent treatment decisions.
Usage
Usage note: Always capitalize R and use numeral 0, not letter O.
In Context
- "The pathology report confirmed R0 resection with clear margins of 5mm." — Surgical pathology report
- "R0 resection was achieved in 78% of patients undergoing pancreaticoduodenectomy." — Clinical research paper
Also known as
complete resection
negative margin resection
Contrasted with
R1 resection
R2 resection
Don't confuse with
R1 resection