<prompt> Characteristic feature of basal cell carcinoma is:Keratin pearlsFoam cellsNuclear palisadingPsammoma bodies  <response>: Characteristic features of basal cell carcinoma are: Low grade malignancy. More common in fair dry skinned people . NUCLEAR PALISADING on histology. Exposure to sunlight is an impoant etiological factor . Has been seen following prolonged administration of Arsenic. 