Successful Treatment of Adult-Onset Recurrent Respiratory Papillomatosis with CO₂ Laser and Photodynamic Therapy

Figure 2

Initial biopsy during the first visit (a) Vacuolar degeneration in epithelium cells (magnification ×200). (b) Mild atypical hyperplasia in epithelium (magnification ×400). (c) Ki-67 antibody labelling index was 10% (magnification ×100). (d) Human papillomavirus (HPV) was detected in the patient’s laryngeal tissue sample (red arrow) (magnification ×200).

(a)

(b)

(c)

(d)