Figure 3: a) Seborrhoeic Keratosis-well defined hyperpigmented verrucus plaque over scalp; b) Epidermis showing hyperkeratosis, acanthosis, papillomatosis, interlocking of retes with formation of horn cysts (H&E,10X); c) Horn cysts surrounded by proliferation of predominantly bland basaloid cells along with squamous cells (H&E,10X); d) Pseudo horn cysts opening onto surface of epidermis (H&E,10X); e)Squamous eddies in the epidermis (arrow) (H&E,40X)