حالة خمجية.. شاب يشكو من ألم في ساقه وقدمه

A 19-year-old male has a history of athlete’s foot but is otherwise healthy when he develops the sudden onset of fever and pain in the right foot and leg. On physical exam, the foot and leg are fiery red with a welldefined indurated margin that appears to be rapidly advancing. There is tender inguinal lymphadenopathy. The most likely organism to cause this infection is:
a. Staphylococcus epidermidis
b. Tinea pedis
c. Streptococcus pyogenes
d. Mixed anaerobic infection