Fig. 4From: Unusual gingival actinomycosis post allogeneic hematopoietic stem-cell transplant: case reportStudy of extranodal NK/T-cell lymphoma markers. Immunohistochemistry method for A–C and, in situ hybridization for viral status. A CD20, B CD3, C CD56 and D Epstein–Barr virus (EBV)Back to article page