Infected Epidermoid Cyst.
What is Epidermoid cyst?
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An epidermoid cyst is a benign cyst usually found on the skin. The cyst develops from ectodermal tissue, it occurs due to implantation of epidermoid elements into the dermis. Histologically, it is made up of thin layer of squamous epithelium.
What does an Epidermoid Cyst look like?

Appearance:
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Round, mobile, smooth surface mass. Slow growing lesion, from 5 mm to 5 cm in diameter.
Common Locations:
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Face
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Ears
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Chest
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