Tracheal Papilloma Treated with Cryotherapy and Interferon-α: A Case Report and Review of the Literature

Figure 5

Papillary structures made by hyperplastic squamous epithelium are seen in fibrovascular core (H&E, ×40), and koilocytic cells with perinuclear vacuolisation are seen in hyperplastic squamous epithelium (H&E, ×200).