Efficacy of abatacept treatment in a patient with enteropathy carrying a variant of unsignificance in CTLA4 gene: A case report

Figure 2 Panoramic view of colonic mucosa. A: Arrows point to the enlarged and increased number of lymphoid follicles (lymphoid hyperplasia) (HE, 2×). No atypia of lymphoid cells was noted. The lamina propria expanded with the infiltration of immune cells, such as lymphocytes, plasma cells, and macrophages. The number of crypts diminished focally (HE, 20×); B: The arrows point to the increased crypt epithelial apoptosis in a Graft-versus-Host Disease-like pattern. The lamina propria expanded with predominantly mononuclear inflammatory cell infiltration (HE, 200×).