Fig. 3.From: The pterional approach for the surgical resection of an orbital cholesteatoma: a case reportHistological characteristics of the orbital cholesteatoma. The histological analysis of the resected tumor showed classic components of a cholesteatoma such as fibrosis (a), hematic content and mixed inflammatory infiltrate (b, c), as well as cholesterol crystals (d). The absence of an epithelial component indicates that this tumor was indeed a cholesterol granulomaBack to article page