Anderegg C R, Lyles M B
Department of Periodontics, Naval Dental Center, Long Beach, CA 90822.
Mil Med. 1992 Jun;157(6):323-4.
A case report underlining the necessity of the biopsy procedure for a pigmented lesion of unknown origin. A female patient was referred for evaluation of a pigmented lesion on the facial keratinized gingiva coronal to the free gingival margin above tooth No. 7. An excisional biopsy revealed a graphite tattoo. A discussion and differential diagnosis of pigmented lesions follows.