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  • Title: Papillary necrosis in experimental renal transplantation in the rat.
    Author: Henry MA, Jablonski P, Howden BO, Rae D, Tavanlis G, Marshall VC, Tange JD.
    Journal: Pathology; 1988 Jul; 20(3):279-84. PubMed ID: 3060823.
    Abstract:
    Renal papillary necrosis is a frequent complication of unsuccessful renal transplantation in rats, occurring in both isografts and allografts. Papillary necrosis does not occur alone, but only and inevitably in association with severe cortical damage. The pattern of the lesion is different from other forms of papillary necrosis in that the least severe lesions occur in the outer medulla and the more severe lesions involve both medulla and papilla. The incidence of papillary necrosis is increased in isografts, but not in allografts, by longer preservation times. It is suggested that the principal underlying cause may be damage to medullary capillaries, occurring either during preservation or as a consequence of rejection and leading to medullary ischemia.
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