The patient went on to have resection of the lesion.
MICROSCOPIC DESCRIPTION:
The sections show predominantly aggregation of laminated keratin. Short segments of a membrane composed of a lining of squamous epithelium arranged on a thin layer of collagen are noted. The squamous epithelium fas a well developed granular layer. The overall features are of an epidermal cyst. No appendageal structures are identified. There is no evidence of tumour.
DIAGNOSIS:
Epidermal cyst.