Bone marrow morphology, infection, posttransplantation chimerism, and recovery of respiratory function. (Ai-iii) represent patient 1; (iv-vi) represent patient 2. (i,iv) depict Gomori reticulin stain, (ii,v) depict megakaryocyte morphology by hematoxylin and eosin staining, (iii) depicts acid-fast bacilli in a skin biopsy of patient 1, and (vi) depicts HPV-16/18 RNA by in situ hybridization in a cervical biopsy of patient 2. (B) Percentage donor myeloid and T-cell chimerism in each patient as indicated by time after transplantation. (C) Recovery of lung volume after transplantation in patients 2 to 4. Red and blue arrowheads indicate predicted lung volume for patient height and weight. (D) Chest radiographs of patient 2 before (pre) transplantation with bilateral central symmetrical lung opacities, relative sparing of the apices and costophrenic angles, and extensive diffuse and miliary opacities, which had significantly resolved 6 months after (post) transplantation. FEV, forced expiratory volume; FVC, forced vital capacity.