case_images: PMC10774758_01
case_images: (A) Gastric carcinoma with lymphoid stroma. Typically, these cases are histologically diverse, with a range of patterns from well-defined cellular trabeculae to less organized syncytial structures. They are marked by dense infiltration of lymphoid cells within the tumor architecture (hematoxylin and eosin, original magnification, x200). (B) The tumor cells, not the tumor-infiltrating lymphocytes, are positive in EBER in situ hybridization (EBER in situ, original magnification, x200).. EBER = Epstein-Barr virus-encoded small RNA.
case_images: jgc-24-69-g007.jpg
case_images: PMC10774758_01_jgc-24-69-g007.jpg
case_images: F7
case_images: EBV positivity rates vary from 22.5% to 100% depending on the report, and it is worth noting that studies reporting rates as high as 80% or more used EBV-encoded small RNA (EBER) (Fig. 7B).