Table 2. An illustrative example of the text used for the IR task.

Bold texts are the expected answers. Italicized text was removed during training.

Comments: The biopsy shows interstitial inflammation (i2) consisting of mostly mononuclear leukocytes. Tubulitis (t2) is readily identified in the areas with infiltrating inflammatory cells. These findings support the diagnosis of acute T-cell mediated rejection (IA).

Microscopic Description: The following findings are based on hematoxylin and eosin (H&E), periodic acid-Schiff (PAS), and Masson trichrome-stained sections. The specimen submitted for light microscopic evaluation consists of cortical tissue with at least 35 glomeruli. No segmentally or globally sclerosed glomeruli are seen. The glomeruli demonstrate focal mild mesangial widening. The glomerular capillary walls are of normal thickness and contours. Patchy moderate inflammation is noted associated with scattered moderate tubulitis. The inflammation consists predominantly of mononuclear leukocytes with coms plasma cells and only rare eosinophils. Mild interstitial fibrosis and tubular atrophy are present (∼10%). The arteries and arterioles show focal mild hyalinosis. No endotheliitis or peritubular capillaritis is identified.