HTT Data Collection Training

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HTT Data Collection Training

Overview of the Data Collection Tasks:

You will be presented pre-selected regions of interest (ROIs) digitally or on a microscope For each ROI, please complete three tasks:

1) Label the ROI: Please label each ROI in order to determine whether it can be evaluated for sTILs.

  • Intra-tumoral stroma: Stroma within the limits of cancer (NOT intro-epithelial TILs).
  • Invasive Margin: Typically 1 mm, contains an edge of malignant cell nests.
  • Tumor with NO intervening stroma: Densely packed tumor with no stroma, regardless of immune infiltrate
  • Other regions: Necrosis, fibrosis, or other areas of granulocytic infiltrate.

2) Record % of Tumor-Associated Stroma: You will be prompted to record the estimated density percent of tumor-associated stroma. The percent tumor-associated stroma is a number from 0-100, and training for this evaluation is below.

3) Record % of sTIL density: You will be prompted to record the estimated density percent tumor-associated stromal TIL density (sTIL density). The percent sTIL density is a number from 0-100, and training for this evaluation is below.


These materials were created by the International Immuno-Oncology Working Group (TILs in breast cancer).

REQUIRED Tasks

More Training and Information

Learn how to estimate the density of sTILs

Learn how to navigate and use the data-collection platforms

Begin Data Collection!

Click HERE to move to the launch point for data collection.

If you have any questions: Contact Us

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