Figure 1From: Perianal Crohn’s disease and hidradenitis suppurativa: a possible common immunological scenarioPerianal fistula sample: haematoxylin-eosin (H&E) staining reveals denuded surface, overlying florid inflammatory granulation tissue (original magnification ×5). The CD3+, CD4+ and CD8+ T cells are identified by appropriate immunohistochemical stains (patient n°3).Back to article page