Cytomegalovirus Colitis Masquerading as Apple-Core Lesion after Systemic Chemotherapy in a Patient with Relapsed Acute Myeloid Leukemia

Figure 4

(a) CMV immunohistochemical stain, 200x magnification, highlighting both nuclear and cytoplasmic staining (brown chromogen) within the ulcerated granulation tissue. (b) H&E stain, 400x magnification, showing a CMV-infected endothelial cell with dot-like cytoplasmic inclusions (white arrow).

(a)

(b)