Histological features of this case. A: The tumor formed an ulcerating mucosal mass. B: Intraepithelial lymphocytosis was also seen in the adjacent gastric mucosa. C and D: The ulcer was deep and caused the transmural infiltration by florid mixed inflammatory cells. E and F: Neoplastic lymphoid cells (black arrow) were scattered amidst the inflammatory infiltrate. A large number of neutrophils and eosinophils were also observed (red arrow).
Wang et al. Diagnostic Pathology 2012 7:172 doi:10.1186/1746-1596-7-172