Histologic analysis of bone marrow from transplant recipients.

Hematoxylin and eosin staining; original magnification, ×100. Representative bone marrow changes in allogeneic full-term fetal blood recipients are shown. Bone barrow was obtained 14 to 15 days after treatment. (A) Radiation only. (B) Allogeneic T-cell–depleted bone marrow. (C) Allogeneic T-cell–depleted bone marrow plus T cells. (D) Allogeneic full-term fetal blood.