CT和MR诊断Madelung病累及喉和喉周围结构  

Diagnosis of Madelung's disease involving larynx and surrounding structures with CT and MR

作　　者：张忻宇[1] 刘平[2] 薛杰[3] 王明广[1] 

机构地区：[1]青岛大学医学院附属医放射科,山东青岛266003 [2]青岛理工大学理学院,山东青岛266033 [3]青岛大学医学院附属烟台毓璜顶医院超声诊断科,山东烟台264000

出　　处：《中国医学影像技术》2008年第11期1733-1736,共4页Chinese Journal of Medical Imaging Technology

摘　　要：目的观察Madelung病累及喉和周围结构的CT和MR表现。方法回顾性分析23例Madelung病的CT和MR表现。结果CT和MR显示异常增多的脂肪组织主要沉积于颈前和项部皮下组织、胸锁乳突肌深面、斜方肌深面、颈后三角、涎腺周围等部位。增多的脂肪组织累及喉部包括喉内脂肪堆积和喉周围结构脂肪堆积。喉内脂肪增多包括声门上区受累、声门区受累和声门下区受累。喉内脂肪增多可以造成喉腔狭窄,主要发生于声门上区和声门区。喉周围结构脂肪增多可累及舌骨下肌群深面和前方、环状软骨后方、咽后间隙等。舌骨下肌群深面脂肪增多,舌骨下肌群与甲状软骨分离,肌肉呈游离状。环状软骨后方脂肪增多使环状软骨与环后区之间出现间隙。咽后间隙脂肪增多使喉前移,与椎前组织分离,呈漂浮状,主要出现于声门上区水平。结论CT和MR检查能准确显示Madelung病颈部增厚脂肪的分布范围,进一步了解喉和喉周围结构受累情况。Objective To investigate manifestations of Madelung＇s disease involving larynx and surrounding structures with CT and MR. Methods CT and MR manifestations of 23 cases of Madelung disease were analyzed retrospectively. Results The density on CT and signal intensity on MR of the excess fat were equal to that of normal fat. CT and MR showed that the abnormally proliferated fat was mainly deposited at the anterior and posterior subcutaneous tissues of the neck, deep under the sternocleidomastoid and trapezius muscles, situated in posterior cervical triangle, around the salivary glands and so on. The involvement of the larynx included fatty accumulation within and around the larynx. Lipotrophy within the larynx included involvement of the supraglottic region, vocal area and infraglottic region. Lipotrophy within the larynx might caused narrow of the laryngeal lumen, which mainly appeared at the supraglottic region and vocal area. Lipotrophy around the larynx might involve deep layer and anterior aspect of infrahyoid muscles, posterior aspect of cricoid, retropharyngeal space, etc. Lipotrophy at deep layer of infrahyoid muscles separated infrahyoid muscles from thyroid cartilage, and the muscles appeared dissociated. Lipotrophy at the posterior aspect of cricoid made a space between the cricoid cartilage and the postcricoid region. Lipotrophy at the retropharyngeal space made the larynx move ahead, separate from prevertebral space and float, which mainly appeared at the supraglottic level. Conclusion CT and MR can accurately show distribution of the thickened cervical fat and the involvement of larynx and its surrounding structures in patients with Madelung＇s disease.

关 键 词：脂肪瘤样病 多发性对称性 断层摄影术 X线计算机 磁共振成像 

分 类 号：R445[医药卫生—影像医学与核医学] R739.65[医药卫生—诊断学]