The heterogeneous rejection 3 days post transplant. The extravasated blood and foci of pulmonary atelectasis in the apex of left lung (A). Histological and immnunohistochemical examination demonstrated grade A1 rejection in apex (B,C) and little evidence for acute rejection in the base of lung (D). C-D: H&E, x200. B: CD3 IHC, x200.
Cheng et al. Diagnostic Pathology 2013 8:168 doi:10.1186/1746-1596-8-168