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Fig. 2 | Infectious Agents and Cancer

Fig. 2

From: Relationship between CK19 expression, deregulation of normal keratinocyte differentiation pattern and high risk-human papilloma virus infection in oral and oropharyngeal squamous cell carcinoma

Fig. 2

Immunohistochemical expression of CK19 in HPV+ and HPV OSCCs. a. Note the strong and diffuse immuostaining for CK19 in a representative case of HPV related OSCC. b. A complete CK19 negative staining in HPV negative OSCC can be observed. Internal control is represented by the positive staining for CK19 in salivary glands. (LSAB-HRP, nuclear counterstaining with haematoxylin; original magnification a, x40; b, x100)

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