Fig. 2From: Primary squamous cell carcinoma of the liver: an unexpected pathological findinga Showing a well-differentiated squamous cell carcinoma (H&E, × 100). b The tumor shows obvious squamous cell features such as seen here (arrow). c Well-differentiated lesion shows prominent keratinization and may form “pearl-like” structures (40 ×). Interposed areas of necrosis and fibrosis are evident. d Diffuse nuclear staining (arrow) for p63 in squamous neoplastic cellsBack to article page