Fig. 4. Histologic findings of the patient. (A-C) Duodenal biopsy (H&E, ×20). Chronic active duodenitis with ulcer and hyalinized capillaries with microthrombi. (D) Immunohistochemical cytomegalovirus (CMV) staining (arrow, CMV-positive cell).

Korean J Transplant 2021;35:262~267 https://doi.org/10.4285/kjt.21.0017