title: Clear cell odontogenic carcinoma mimicking a cystic lesion: a case of misdiagnosis.
abstract: Clear cell odontogenic carcinoma (CCOC) is a rare jaw tumor that was classified as a malignant tumor of odontogenic origin in 2005 by the World Health Organization because of its aggressive and destructive growth capacity and metastasis to the lungs and lymph nodes. We report a case of a 66-year-old female who had swelling, incision and drainage history and a well-defined unicystic radiolucent lesion that was comparable to a cystic lesion. At first, the patient received decompression, and the lesion size decreased. Three months after decompression, cyst enucleation was performed. The pathologic result indicated that the lesion was CCOC. In this report we emphasize that patients with painful cystic lesions in addition to jaw enlargement and loosening teeth should be considered for the possibility of malignancy.
authors.affiliation: Department of Oral and Maxillofacial Surgery, College of Dentistry, Yonsei University, Seoul, Korea.
authors.forename: Minkyu
authors.initials: M
authors.lastname: Kim
authors.affiliation: Department of Oral Pathology, College of Dentistry, Yonsei University, Seoul, Korea.
authors.forename: Eunae
authors.initials: E
authors.lastname: Cho
authors.affiliation: Department of Oral and Maxillofacial Surgery, College of Dentistry, Yonsei University, Seoul, Korea.
authors.forename: Jae-Young
authors.initials: JY
authors.lastname: Kim
authors.affiliation: Department of Oral Pathology, College of Dentistry, Yonsei University, Seoul, Korea. ; Oral Cancer Research Institute, College of Dentistry, Yonsei University, Seoul, Korea.
authors.forename: Hyun Sil
authors.initials: HS
authors.lastname: Kim
authors.affiliation: Department of Oral and Maxillofacial Surgery, College of Dentistry, Yonsei University, Seoul, Korea. ; Oral Cancer Research Institute, College of Dentistry, Yonsei University, Seoul, Korea.
authors.forename: Woong
authors.initials: W
authors.lastname: Nam
keywords: Head and neck neoplasms; Mouth neoplasms