INBDE (Integrated National Board Dental Examination) Practice Exam

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Sulfur granules in purulent neck infections are found in

  1. Tuberculosis

  2. Staphylococcus aureus

  3. Actinomycosis

  4. Candidiasis

The correct answer is: Actinomycosis

Granules are small, grain-like structures that are formed in certain types of infections. In purulent neck infections, where there is a buildup of pus or fluid, sulfur granules may be present. These granules have a characteristic yellow color and a sulfur-like smell. In this particular case, sulfur granules are specifically found in actinomycosis, which is a bacterial infection caused by Actinomyces species. This bacteria forms branching filaments that can look like granules under a microscope. While tuberculosis, Staphylococcus aureus, and candidiasis can also cause purulent neck infections, they do not typically produce sulfur granules. Therefore, C is the correct answer.