Single laryngeal papilloma is

  1. Single laryngeal papilloma is:
    a. Locally malignant lesion.
    b. Malignant lesion.
    c. Precancerous.
    d. Non of the above.

  2. Single laryngeal papilloma occurs in:
    a. Adults.
    b. Children.
    c. Both of them.
    d. Non of them.

  3. Multiple laryngeal papilloma occurs in:
    a. Adults.
    b. Children.
    c. Both of them.
    d. Non of them.

  4. The following conditions cause stridor EXCEPT:
    a. Laryngeal diphtheria.
    b. Acute laryngitis in adult.
    c. Acute laryngitis in children.
    d. Multiple laryngeal papilloma.

  5. The following conditions cause stridor EXCEPT:
    a. Acute epiglottitis.
    b. Bilateral abductor paralysis.
    c. Bilateral adductor paralysis.
    d. Laryngoscleroma.