Clinical level Points
High-risk phenotypes Intermediate-risk phenotypes Defined phenotype epidemiologically not associated with cancer 3 2 0
Laboratory level
High-risk antibody (>70% cancer association) Intermediate risk antibody (30%–70%) Lower risk antibody (<30%) or negative 3 2 0
Cancer
Found, consistent with phenotype and (if present) antibody, or not consistent but antigen expression demonstrated Not found (or not consistent) but follow-up <2 y Not found and follow-up ≥2y 4 1 0
Diagnostic level Total points
Definite Probable Possible Non-PNS ≥8 6-7 4-5 ≤3