Fig. 8: A false negative example of metastasis in a patient with preoperative chemotherapy. | Modern Pathology

Fig. 8: A false negative example of metastasis in a patient with preoperative chemotherapy.

From: Identification of nodal micrometastasis in colorectal cancer using deep learning on annotation-free whole-slide images

Fig. 8

This whole-slide image (a) (close-up view: c) with a small focus (2.16 mm in size) of metastatic signet ring cell/poorly differentiated adenocarcinoma (arrowheads) was misclassified as negative. However, class activation mapping (b, d) still highlighted areas with relatively high density of tumor cells.

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