“…As desquamation occurs, the cystic cavity fills with epithelial cells consisting predominantly of keratin in concentric layers, water and cholesterol from cell membrane degradation, giving the tumor its pearly appearance. 1,3,4,6,14,15 Calcification is believed to be present in 10% of intracranial epidermoids. 9,16 Grossly, the lesion is well-defined with either a smooth or lobulated, cauliflower-like surface, contained within a pearly colored capsule.…”