A 30-year-old man presents with recurrent severe tonsillitis and halitosis. On examination, the tonsils appear cryptic with multiple white debris-filled crypts visible on the surface. He is diagnosed with chronic tonsillitis with tonsilloliths. Which is the most common organism associated with chronic tonsillitis in such cases?

• A Streptococcus pyogenes (Group A beta-hemolytic streptococcus)
• B Haemophilus influenzae
• C Staphylococcus aureus
• D Mixed aerobic and anaerobic flora ✓

Explanation

Chronic tonsillitis is most commonly associated with mixed aerobic and anaerobic flora rather than a single pathogen. The crypts harbor bacteria and desquamated epithelial cells that form tonsilloliths. While Group A streptococcus causes acute tonsillitis, chronic infection involves polymicrobial flora including alpha-hemolytic streptococci, anaerobes like Fusobacterium and Bacteroides, and other organisms. This polymicrobial nature explains the limited efficacy of targeted antibiotics in chronic cases.

Reference: Scott-Brown's Otorhinolaryngology, Head and Neck Surgery, 8th ed.

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Written and medically reviewed by the StethoPrep medical team.