Jadhav Aniket B, Tadinada Aditya, Rengasamy Kandasamy, Fellows Douglas, Lurie Alan G
Department of Oral and Maxillofacial Radiology, University of Connecticut School of Dental Medicine, Farmington, CT, USA.
Division of Diagnostic Sciences and Therapeutics, University of Connecticut School of Medicine, Farmington, CT, USA.
Imaging Sci Dent. 2014 Jun;44(2):165-9. doi: 10.5624/isd.2014.44.2.165. Epub 2014 Jun 11.
An osteolytic lesion with a small central area of mineralization and sclerotic borders was discovered incidentally in the clivus on the cone-beam computed tomography (CBCT) of a 27-year-old male patient. This benign appearance indicated a primary differential diagnosis of non-aggressive lesions such as fibro-osseous lesions and arrested pneumatization. Further, on magnetic resonance imaging (MRI), the lesion showed a homogenously low T1 signal intensity with mild internal enhancement after post-gadolinium and a heterogeneous T2 signal intensity. These signal characteristics might be attributed to the fibrous tissues, chondroid matrix, calcific material, or cystic component of the lesion; thus, chondroblastoma and chondromyxoid fibroma were added to the differential diagnosis. Although this report was limited by the lack of final diagnosis and the patient lost to follow-up, the incidental skull base finding would be important for interpreting the entire volume of CBCT by a qualified oral and maxillofacial radiologist.
在一名27岁男性患者的锥形束计算机断层扫描（CBCT）中，偶然发现斜坡处有一个溶骨性病变，其中心有一小片矿化区域，边界硬化。这种良性表现提示主要鉴别诊断为非侵袭性病变，如骨纤维性病变和停止的气化。此外，在磁共振成像（MRI）上，该病变在T1加权像上呈均匀低信号强度，钆增强后内部有轻度强化，T2加权像上信号强度不均匀。这些信号特征可能归因于病变的纤维组织、软骨样基质、钙化物质或囊性成分；因此，成软骨细胞瘤和软骨黏液样纤维瘤也被列入鉴别诊断。尽管本报告因缺乏最终诊断且患者失访而受到限制，但偶然发现的颅底病变对于合格的口腔颌面放射科医生解读整个CBCT体积很重要。
