Figure 3
From: Perianal squamous cell carcinoma in-situ: a report of two human papilloma virus-negative cases

Squamous cell carcinoma in-situ, H&E, 40×.
From: Perianal squamous cell carcinoma in-situ: a report of two human papilloma virus-negative cases
Squamous cell carcinoma in-situ, H&E, 40×.