Kim Jong Chan, Hong In Pyo
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.
Arch Craniofac Surg. 2016 Dec;17(4):222-224. doi: 10.7181/acfs.2016.17.4.222. Epub 2016 Dec 23.
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.
表皮样囊肿是皮内或皮下的囊性肿瘤，常见于面部、头皮、颈部和躯干。后天性表皮样囊肿通常因各种外科手术、慢性刺激或创伤而发生，所有这些都可能引发鳞状上皮内陷的发生。一名57岁男性患者上唇出现一个可触及的肿块，大小为7厘米×2厘米。该患者有佩戴假牙修复双侧上颌中切牙和侧切牙缺失的3年病史，由于慢性唇部刺激，颊黏膜有炎症表现。切除的椭圆形囊肿大小为5.5厘米×3.0厘米×2.5厘米，是一个有包膜、边缘清晰的肿块。组织病理学为典型的表皮样囊肿。这例佩戴假牙患者罕见的巨大上唇表皮样囊肿病例可能会引起临床医生的兴趣。
