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目的探讨头颈部木村病的MRI影像学表现及临床特点,提高对该疾病的认识和诊断水平。方法搜集经手术病理证实的头颈部木村病12例完整资料,所有病例术前均行MR平扫与增强扫描,回顾性分析其临床及MRI表现。结果本病青中年男性多见,12例木村病病程长(平均6年),表现为颌下、腮腺及耳后区的慢性无痛性肿块,12例外周血检查中嗜酸性粒细胞明显增高,占白细胞总数的28%～65%。MRI表现为:①单侧腮腺、颌下腺浅叶弥漫性增大,常伴有多个结节,或者单侧耳廓弥漫肿大,腮腺仅轻度增大;②同侧腮腺周围、颌下区淋巴结受累,淋巴结信号均匀,强化均匀,边缘光整,未见融合;部分病例双侧上颈深部淋巴结受累。结论木村病具有一定的影像特点,结合临床表现和实验室指标,术前可以诊断。
Objective To investigate MRI features and clinical features of Kimura disease in head and neck and to improve the level of awareness and diagnosis of this disease. Methods The complete data of 12 patients with pathologically confirmed head and neck disease of Kimura were collected. All patients underwent MR plain scan and enhanced scan before operation. The clinical and MRI findings were retrospectively analyzed. Results The disease was more common in middle-aged men than in middle-aged men, with 12 cases of Kimura disease having a long course of disease (mean 6 years), showing chronic painless mass in the submandibular, parotid and posterior regions. Eosinophils were significantly detected in 12 cases of peripheral blood Increased, accounting for 28% of the total number of leukocytes ~ 65%. MRI showed: ① unilateral parotid gland, submandibular gland shallow diffusely increased, often accompanied by multiple nodules, or unilateral auricle diffuse enlargement, parotid gland only slightly increased; ② ipsilateral parotid gland, submandibular lymph nodes Involved, lymph node signal uniformity, enhanced uniform edge trim, no fusion; in some cases bilateral upper cervical lymph node involvement. Conclusion Kimura disease has some imaging features, combined with clinical manifestations and laboratory parameters, preoperative diagnosis.