Epidermoid cyst was seen in the tenth thoracic vertebral body of a 4-year-old female Samoyed dog and in the terminal phalanx of the fifth digit of the left forepaw of a 5-year-old spayed mongrel dog. The cysts contained caseous, gray-white material and were lined with layers of squamous, granular or basal cells filled with keratin. Cholesterol clefts were embedded in the vertebral and phalangeal bones.
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