%0 Journal Article
%T Rare Giant Upper Lip Epidermal Cyst in a Patient Wearing a Denture.
%A Kim JC
%A Hong IP
%J Arch Craniofac Surg
%V 17
%N 4
%D Dec 2016
%M 28913288
暂无%R 10.7181/acfs.2016.17.4.222
%X 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.