Archives of Craniofacial Surgery  2016;17(4):222-224

doi:10.7181/acfs.2016.17.4.222

Rare Giant Upper Lip Epidermal Cyst in a Patient Wearing a Denture.

Jong Chan KIM 1 ; In Pyo HONG

Affiliations

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Keywords

Giant epidermal cyst; Dentures; Chronic irritation

Country

Republic of Korea

Language

English

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.