Primary syphilis in the oral cavity.
D000328:Adult; D006716:Homosexuality; D006801:Humans; D008297:Male; D009059:Mouth Diseases / Q000209:etiology; D009344:Neisseria gonorrhoeae / Q000302:isolation & purification; D010159:Palate; D014066:Palatine Tonsil / Q000382:microbiology; D010400:Penicillin G / Q000627:therapeutic use; D012725:Sexual Behavior; D013587:Syphilis / Q000188:drug therapy / Q000209:etiology
D010400:Penicillin G