Microvascular inflammation in the absence of human leukocyte antigen-donor-specific antibody and C4d: An orphan category in Banff classification with cytotoxic T and natural killer cell infiltration

Anna Buxeda, Laura Llinàs-Mallol, Javier Gimeno, Dolores Redondo‐Pachón, Carlos Arias-Cabrales, Carla Burballa, Adrián Puche, Miguel López‐Botet, José Yélamos, Carlos Vilches, Maarten Naesens, María José Pérez‐Sáez, Julio Pascual, Marta Crespo