Shimamoto Hiroaki, Kishino Mitsunobu, Okura Masaya, Chindasombatjaroen Jira, Kakimoto Naoya, Murakami Shumei, Furukawa Souhei
Department of Oral and Maxillofacial Radiology, Osaka University Graduate School of Dentistry, Osaka, Japan.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2011 Dec;112(6):798-802. doi: 10.1016/j.tripleo.2011.06.025. Epub 2011 Oct 8.
We herein describe a rare case of a 48-year-old woman with both ossifying fibroma (OF) and keratocystic odontogenic tumor (KCOT) in the mandible. CT images showed a 15 × 15 × 20-mm radiolucent-radiopaque lesion with bucco-lingual bony expansion in the left first premolar equivalent area of the mandible, and a 15 × 40 × 35-mm well-defined unilocular radiolucent lesion in the left side of the mandible, extending from the distal side of the distal root of the left second molar to the left mandibular ramus. A biopsy of the radiolucent-radiopaque lesion and fenestration surgery of the radiolucent lesion were performed. Histopathologic examination revealed a fibro-osseous lesion (FOL) and a KCOT, respectively. CT was useful in diagnosing the radiolucent-radiopaque lesion as OF and for detecting the 3-dimensional bone expansion and the contents in the lumen of the KCOT.
我们在此描述一例罕见病例，一名48岁女性下颌骨同时患有骨化性纤维瘤（OF）和牙源性角化囊性瘤（KCOT）。CT图像显示，在相当于下颌骨左侧第一前磨牙区域有一个15×15×20毫米的透射线-阻射线病变，伴有颊舌侧骨质膨胀，以及在下颌骨左侧有一个15×40×35毫米边界清晰的单房性透射线病变，从左下颌第二磨牙远中根远中侧延伸至左下颌升支。对透射线-阻射线病变进行了活检，并对透射线病变进行了开窗手术。组织病理学检查分别显示为纤维骨性病变（FOL）和KCOT。CT有助于将透射线-阻射线病变诊断为OF，并检测KCOT的三维骨质膨胀及腔内内容物。
