Fig. 3From: Perineal squamous cell carcinoma arising from an epidermal cyst: a case reportHistopathological findings. a Gross findings: microinvasive squamous cell carcinoma (arrow), epidermal cyst wall (thin portion). b Microinvasive squamous cell carcinoma (H&E, × 400). c Benign cyst (H&E, × 1)Back to article page