Camrelizumab (SHR-1210) leading to reactive capillary hemangioma in the gingiva: A case report

Figure 3 Histopathological findings. A: Many blood vessels in the connective tissue stroma (Hematoxylin and eosin staining; magnification, 40 ×); B: Stratified squamous surface epithelium (Hematoxylin and eosin staining; magnification, 100 ×); C: The connective tissue stroma was composed of loosely arranged collagen fiber bundles interspersed with moderate chronic inflammatory cell infiltration of lymphocytes and plasma cells and many blood vessels containing red blood cells (Hematoxylin and eosin staining; magnification, 100 ×).