Fig. 2: Sample patch images from failure cases (Hematoxylin-eosin stain, ×200).
From: Yet Another Automated Gleason Grading System (YAAGGS) by weakly supervised deep learning

False-negative cases showed small-sized cancers, which consisted of only several cancer glands, or cancer glands located on the outer sample margin of the WSI. a was diagnosed as grade group 1 and b as grade group 4 in the reference standard, respectively. False-positive cases often exhibited diffuse infiltration of lymphocytes and atrophic glands. The prediction of the model was grade group 4 for (c) and grade group 1 (d), respectively.