A case of multiple trichilemmal cysts (TC) is presented. TC is known to be a kind of keratinous cyst with lining cells showing trichilemmal keratinization. About 90% of TC occur on the scalp. They are multiple in 70%, however, only 10% of the patients have been reported to have more than ten cysts. Therefore multiple TC on any other sites than scalp seem to be rare. A 37-year-old man presented with a twenty year duration of twelve nodular lesions on the back, chest, buttock, thigh, neck and scalp. All lesions were completely excised and microscopically examined, and showed histopathology compatible with TC.
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