Group G streptococcal sepsis, septic arthritis and myositis in a patient with severe oral ulcerations.

Lancefield group G streptococci (GGS) are a relatively less common cause of streptococcal infections but the incidence of which has been reported to increase in the recent years. Similar to group A streptococci, GGS produce localised and invasive infections. Streptococcal myositis is a very rare but highly fatal infection of muscles generally caused by group A streptococci. We report a case of sepsis, migrating septic arthritis and diffuse myositis caused by β-haemolytic GGS. It is an unusual case of diffuse β-haemolytic GGS myositis involving multiple muscle groups in a patient who demonstrated no skin lesions or sign of streptococcal toxic shock syndrome. The patient responded well to intravenous antibiotics without surgical intervention and experienced full recovery.