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. Author manuscript; available in PMC: 2012 Jul 1.
Published in final edited form as: Am J Transplant. 2011 Jun 10;11(7):1464–1477. doi: 10.1111/j.1600-6143.2011.03572.x

Figure 4.

Figure 4

EM of representative engraftment syndrome cases illustrate the widespread and characteristic peritubular capillary endothelial injury that occurs in this condition. (A and C) Peritubular capillary (PTC) channels no longer lined with endothelium have red blood cell stasis. The bare basement membrane is indicated by black arrows. A capillary with residual, but activated endothelium has fibrin in the lumen (B). A ghost capillary is shown in (D) in which only the basement membrane remains [arrowheads]; extravasated red blood cells are in the renal interstitium [black arrows].