Prevalence and imaging characteristics of palatine tonsilloliths evaluated on 2244 pairs of panoramic radiographs and CT images
Prevalence and imaging characteristics of palatine tonsilloliths evaluated on 2244 pairs of panoramic radiographs and CT images
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DOI：
10.1007/s00784-016-1752-0
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发表时间：
2017-01-01
影响因子：
3.4
通讯作者：
Miyamoto, Youji
中科院分区：
文献类型：
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作者：
Takahashi, Akira;Sugawara, Chieko;Miyamoto, Youji
诊断影像上偶然发现的腭扁桃体结石应与病理性钙化相鉴别，以便正确诊断和治疗。本研究的目的是阐明腭扁桃体结石的患病率和影像学特征的全景radiographics.We回顾性分析了2244个人谁经历了对连续的全景radiography和计算机断层扫描（CT）的头部和颈部区域。将腭扁桃体结石在曲面断层片上的影像学特征与作为金标准的CT结果进行比较，在2244例患者中，曲面断层片和CT分别检出扁桃体结石300例（13.4%）和914例（40.7%）。在曲面断层片上，扁桃体结石分别在176例（7.8%）和90例（4.0%）人的软腭下方重叠在下颌支上。扁桃体结石还分别在33例（1.5%）、26例（1.2%）和28例（1.3%）个体中叠加在下颌骨体下方、下颌骨角后下方和下颌骨支后方的周围软组织上。CT图像显示扁桃体结石的大小（斯皮尔曼r = 1.000）和数目（斯皮尔曼r = 0.991）与全景片的检出率有显著相关性，提示扁桃体结石在全景片上是常见的。此外，它们可以叠加在下颌骨和周围的软组织上。临床医生应该包括扁桃体结石的鉴别诊断，当钙化体检测到全景X线片。
Palatine tonsilloliths incidentally detected on diagnostic imaging should be differentiated from pathologic calcifications to enable correct diagnosis and treatment. The aim of this study is to clarify the prevalence and imaging characteristics of palatine tonsilloliths on panoramic radiographs.We retrospectively reviewed 2244 individuals who underwent pairs of consecutive panoramic radiography and computed tomography (CT) of the head and neck region. The imaging characteristics of palatine tonsilloliths on panoramic radiography were compared with the findings from CT, which was considered the gold standard.Tonsilloliths were detected in 300 (13.4 %) and 914 (40.7 %) of the 2244 individuals on panoramic radiographs and CT, respectively. On panoramic radiographs, tonsilloliths were superimposed over the ramus of the mandible at the level coincident with and inferior to the soft palate in 176 (7.8 %) and 90 (4.0 %) individuals, respectively. Tonsilloliths were also superimposed over the surrounding soft tissue inferior to the body of the mandible, postero-inferior to the angle of the mandible, and posterior to the ramus of the mandible in 33 (1.5 %), 26 (1.2 %), and 28 (1.3 %) individuals, respectively. A significant correlation was observed between the detectability on panoramic radiographs and the size (Spearman r = 1.000) and number (Spearman r = 0.991) of tonsilloliths, as revealed by CT images.The present results suggest that tonsilloliths are commonly detected on panoramic radiographs. Furthermore, they can be superimposed on both the mandible and the surrounding soft tissue.Clinicians should include tonsilloliths among the differential diagnoses when calcified bodies are detected on panoramic radiographs.