Basal cell carcinoma:

Basal cell carcinoma is a type of skin cancer. Basal cell carcinoma begins in the basal cells — a type of cell within the skin that produces new skin cells as old ones die off

Well demarcated islands and strands epithelial cells invading in underlaying connective tissue

Epithelial islands typically show palisading of peripheral cells which are columnar cells resembeling basal layer of epithelium

Keratin pearls in center of islands

Pilosebaceous structures seen

Labelled diagrams:

Histopathlogy

Noreen Mohammed Naguib