ASCO/CAP HER2 Score

The following C# formula to calculate the HER2 score is often used for IHC slide analysis.

// ASCO CAP HER2 Scoring Formula

double score;

if (x[2] >= 30)

    score = 3;

else if ((x[2] + x[1]) >= 10)

    score = 2;

else if ((x[2] + x[1] + x[0]) >= 10)

    score = 1;

else

    score = 0;

return score;