A Review of Carcinomas Arising in the Head and Neck Region in HIV-Positive Patients
Figure 2
Detection of HPV by immunohistochemistry for p16 ((a) 400x magnification) and HPV in situ hybridization ((b) 400x magnification) in a nonkeratinizing squamous cell carcinoma of the tonsil. Note the strong diffuse nuclear and cytoplasmic staining with p16 immunohistochemical stain (a) and the focal nuclear dot positivity with HPV in situ hybridization, confirming the presence of HPV within the tumor.
