title: Atypical presentation of clear cell odontogenic carcinoma.
abstract: Clear cell odontogenic carcinoma (CCOC) is a rare malignant neoplasm of odontogenic origin. The usual clinical presentation of CCOC is a mass of progressive growth in the mandible sometimes accompanied with loss of teeth, pain, or bleeding. We describe a rare case of CCOC that showed an atypical presentation not previously described in the literature like a fast-growing painless mass in the retromolar area that reached a considerable size in a few days that caused obstruction of the airway. The presence of airway obstruction required immediate treatment, which consisted of a surgical excision of the tumor via a hemimandibulectomy. This clinical report highlights the possibility of odontogenic tumors presenting like a rapid-growing mass and the importance of clinical differential diagnosis of such presentation.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Virgen del Rocio University Hospital, Seville, Spain. pinfante@us.es
authors.forename: Pedro
authors.initials: P
authors.lastname: Infante-Cossio
authors.forename: Eusebio
authors.initials: E
authors.lastname: Torres-Carranza
authors.forename: Luis-Miguel
authors.initials: LM
authors.lastname: Gonzalez-Perez
authors.forename: Eduardo
authors.initials: E
authors.lastname: Gonzalez-Cardero
authors.forename: Felicia
authors.initials: F
authors.lastname: Sanchez-Gallego
mesh_terms: D018262:Adenocarcinoma, Clear Cell / Q000000981:diagnostic imaging / Q000473:pathology / Q000532:radiotherapy / Q000601:surgery*; D001706:Biopsy; D017809:Fatal Outcome; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local; D009808:Odontogenic Tumors / Q000000981:diagnostic imaging / Q000473:pathology / Q000532:radiotherapy / Q000601:surgery*; D011862:Radiography, Panoramic; D013524:Surgical Flaps; D014057:Tomography, X-Ray Computed; D014140:Tracheotomy