Chronic Burrowing ulcer is caused by: (A) Microaerophilic streptococci, (B) Peptostreptococcus, (C) Streptococcus viridans, (D) Streptococcus pyogenes
Answer is A. Microaerophilic streptococci (Burrowing ulcer / Maleny's ulcer is caused by synergistic infection of microaerophilic non hemolytic streptococci and aerobic hemolytic streptococci)