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Arch Craniofac Surg. 2016 Dec;17(4):222-224. English. Case Report. https://doi.org/10.7181/acfs.2016.17.4.222
Kim JC , Hong IP .
Department of Plastic and Reconstructive Surgery, National Medical Center, Seoul, Korea.
Department of Plastic and Reconstructive Surgery, Eulji University Hospital, Eulji University School of Medicine, Daejeon, Korea. nmcps@unitel.co.kr
Abstract

Epidermal cysts are intradermal or subcutaneous cystic tumors that frequently occur in the face, scalp, neck, and body trunk. Acquired cases of epidermal cyst commonly occur as a result of various surgical operations, chronic irritation, or trauma, all of which may trigger the occurrence of the invagination of squamous epithelium. A 57-year-old man presented with a palpable mass 7 cm×2 cm in size in the upper lip. The patient had a 3-year history of wearing a denture to restore missing bilateral maxillary central and lateral incisors, accompanied by inflammatory findings on the buccal mucosa due to chronic lip irritation. The resected oval-shaped cyst had a size of 5.5 cm×3.0 cm×2.5 cm, and it was an encapsulated mass with a well-defined margin. The histopathology was typical of epidermal cyst. This case of a rare giant upper lip epidermal cyst in a patient wearing a denture may be of interest to clinicians.

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