Ahuja A T, King A D, Bradley M J, Yeo W W, Mok T S, Metreweli C
Department of Diagnostic Radiology and Organ Imaging, Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, New Territories, Hong Kong.
J Clin Ultrasound. 2000 Jul-Aug;28(6):299-302. doi: 10.1002/1097-0096(200007/08)28:6<299::aid-jcu6>3.0.co;2-1.
Symptomatic metastases in skeletal muscles are rare, and involvement of the masseter muscle is extremely rare, with only 3 reported cases. We report 2 additional cases of masseter-muscle metastases. Sonographically, the masseter-muscle metastases appeared as ill-defined, hypoechoic, heterogeneous lesions aligned with the long axis of the muscle. Fine-needle aspiration was confirmatory. The combination of sonography and fine-needle aspiration is the ideal method for diagnosing masseteric metastases.
骨骼肌出现症状性转移瘤较为罕见,咬肌受累极为罕见,仅有3例报告病例。我们报告另外2例咬肌转移瘤病例。超声检查显示,咬肌转移瘤表现为边界不清、低回声、不均匀的病变,与肌肉长轴一致。细针穿刺抽吸检查可确诊。超声检查与细针穿刺抽吸相结合是诊断咬肌转移瘤的理想方法。