Figure 4
From: Basal cell carcinoma: biology, morphology and clinical implications
Superficial BCC: histomorphology. (a) A proliferation of basaloid cells parallel to the long axis of the epidermis. Serial sectioning showed the small nest at left to connect to the remainder of the tumor, which is in continuity with the undersurface of the epidermis (a). (b) Slit-like stromal retraction (arrow) with mucin deposition in the papillary dermis. (c) A band-like lymphoid infiltrate in apposition to the basaloid nests (arrow) and the undersurface of the epidermis. If only the band-like lymphoid infiltrate is present in a biopsy intended to confirm the presence of BCC, serial deeper step sections through the tissue block are advised.
