What Histological Changes are Associated with Streptococcal Infections?
Histological examination of tissues affected by streptococcal infections typically reveals acute inflammatory responses. In cases of streptococcal pharyngitis, there is usually infiltration of neutrophils in the tonsillar tissue. In more severe infections, such as necrotizing fasciitis caused by Streptococcus pyogenes, there is extensive tissue necrosis and a mixed inflammatory infiltrate including neutrophils, lymphocytes, and macrophages.