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Two photomicrographs of the renal homotransplant from Patient LD 9 who died at 207 days. Rejection episodes at 5, 34, and 71 days had been successfully reversed. A. There is widespread tubular atrophy and interstitial fibrosis, but very little cellular infiltration. Hematoxylin and eosin stain, × 150. B. The absence of peritubular capillaries should be noted. A dilated atrophic tubule (arrow) is lined by flattened regenerating epithelium. Hematoxylin and eosin stain, × 250.
