Figure 11
From: Basal cell carcinoma: biology, morphology and clinical implications

Metatypical BCC: histomorphology. The metatypical BCC is an aggressive growth neoplasm arising in sun-damaged skin and showing irregular tongues of tumor and/or an admixed nodular BCC component (a). High-power microscopy shows cytoplasmic keratinization and/or intercellular bridges in the squamous areas (arrow) (b).