R0

**Semantic type:** Finding

**Definition:** No detectable presence of residual tumor after treatment

**Synonyms:** - No Residual Tumor - R0 - Complete Resection, Negative Margins - R0 - Complete Resection, Negative Margins - R0 - Complete Resection, Negative Margins - R0: No residual tumor - R0: No residual tumor and negative microscopic margins in resected specimen.